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MaxACL
05-18-2004, 10:37
Someone (Inspector perhaps?) suggested a 300,000 mile warranty on the injectors. Anyone else heard this?

Mike (in Spain this month)

Inspector
05-18-2004, 11:50
Wasn't me. I too saw a blip on the extended warrenty and wondered of its validity thats why I looked at this your post. Would be nice wouldn't it?
Denny

MaxACL
05-19-2004, 10:02
Denny, Yea, it would be nice. If you hear any more on this would you please post it in big letters? The connection over here is slower than a ten month gestation.

Mike :rolleyes:

MaxACL
05-19-2004, 10:06
John Deere,
You said a Dealer told you of a 300,000 mile warranty... Who was the dealer?

Mike

rsgs
07-18-2004, 06:41
I have seen in some posts that people are getting 7 year warranty's on their injectors. How do you get this and is it before you had injector problems or after? They are replacing my injectors now. Can I expect (or beg) them to extend the warranty on them to 7 years?

jbplock
07-18-2004, 10:07
rsgs,

IIRC, some 01 and 02 ownwers have received letters from GM stating that they have an extended 7 year 200k injector warranty. I also remember reading somwhere that the new warranty may apply to 03's on case by case basis (or something like that).

smile.gif

[ 07-19-2004, 03:39 PM: Message edited by: jbplock ]

More Power
07-19-2004, 12:26
The new extended fuel injector warranty is a no-cost extension - meaning no deductible. All of these engines come with a factory 5-year or 100,000 warranty, regardless. Any other engine or fuel injection component problem will be covered after 3-years or 36,000 miles with a $100 deductible.
MP

richp
07-19-2004, 13:43
I had a talk with my dealer today about this issue. He is a very reasonable fellow and he agrees that the extended warranty is just what GM should have done when these problems started becoming evident. As a dealer, it makes his job a lot easer. His private belief is that GM got a bad batch of injectors somewhere in the parts flow, and that is the reason most owners are not having, and will not have any problems with injectors.

Then we talked about engine damage associated with fuel in the oil. He also agrees that when there has been any significant amount of fuel in the oil -- and the truck has been run for even a modest amount of time with that contaminated oil -- that the entire engine should be replaced. While he agrees, his contacts with the higher-ups in GM on this issue have produced an absolute "NO". GM told him it will not replace engines in this situation, despite the logic of it.

There can be no question that bearing and other surfaces subject to friction will not be lubricated properly if the oil is thinned by fuel. How can GM hold to rigid lubricant specifications for their engines, and at the same time say that fuel-contaminated oil is not harming the engine?

I haven't had a problem with my truck ('01 K2500) along these lines, and perhaps (hopefully) I never will. But for the sake of all of us -- and particularly those poor folks who drove around for a while with a crankcase full of diesel -- the engine replacement issue should be elevated to the same level of importance as the injector replacement problem was.

Rich Phillips
Member #27

rsgs
07-19-2004, 14:41
Thanx for the info guys. I did not know about the 36 month/36k miles 'extended' warranty. Now I wonder if the life expectancy of my engine has been shortened because of this. I may have drove 20 or so miles after the injector(s) went. When injectors go, do they go like mine did? All of a sudden. Or do they fail over time, dumping fuel in the oil the whole time?

richp
07-20-2004, 10:37
As I said, I haven't had any injector problems. But in the instance the dealer told me about, by the time the owner noticed enough of a problem and got the truck in, the crankcase was completely filled with an oil/fuel mixture. This surely had a high probability of doing some damage to the engine!

The good news is that if you are fairly confident you only put 20 miles or so on the truck with fuel in the oil, the potential for damage would seem to be limited. Since I'm not an engineer, lubricant specialist, or anything other than a common-sense guy, my guess on this is just that. But if I were you, I would not be terribly worried about the long-term impact in the situation you describe.

Dr. Lee might have a totally different take on this, given his background in this area. Any comments, Lee?

Rich Phillips
Member #27

AB_DURAMAX
07-20-2004, 11:58
What are the symptoms of an injector failure??? How does one know that there is fuel leaking internally??? I have an 01 and have received my notice of the extended warranty on the injectors, but I don't really know what to keep an eye open for.....

rsgs
07-20-2004, 14:07
AB_DURAMAX: Check out my other post "Help... I'm smoking". I drove to work and everything was fine. I stopped for coffee, got back in the truck, started it, and it just bellowed dark black smoke and sounded like it was running on three cylinders. As I accelerated, it smoothed out and the smoke decreased some. No SES light or anything. I stopped by the office, and then went to the dealer. Just for s&g's, I changed the fuel filter in the parking lot, hoping for a miracle, but... it's been there since last Thursday.

hd90rider
07-21-2004, 18:04
Well take it for what it's worth. I had fuel dumped in my engine 4 times from injector problems. The last time the engine just let loose. I was in Tx. at the time & had to replace the engine. Oil was full of shavings,bearing material, even though GM said the previous 3 times diesel in oil was "NO PROBLEM". I seviced this truck on a very rigid schedule.I had 282K on the truck. When the first problem ocurred at 215k (i think it was) dealer told me he had never had a cleaner engine (inside) with that amount of miles. I think these engines would go a lot farther if GM would ever get the injector problem fixed. But now I understand LLY's are having injector problems also. Whays the deal?

AB_DURAMAX
07-23-2004, 06:10
Thanks rsgs, that helps !!!

56Nomad
07-23-2004, 17:23
More Power,

You wrote: "The new extended fuel injector warranty
is a no-cost extension - meaning no deductible"

Many of us owners (2001-2002) have not received the
the "letter" advising of this extension for either
the injectors or the tailgate cables.

Does anyone know why GM is doing this seemingly random
notification?

rickdlance
07-24-2004, 04:54
I heard they were notifing people in stages.

Tough Guy
12-30-2004, 16:58
TTT


Da Boy TG ;)

FastDEW
03-18-2005, 22:34
I am thinking about buying a used 2002 Duramax 2500HD. The truck has about 60K miles on it. My questions is, if the injectors fail after I buy, will they be repaired by GM for free even if I am not the original owner and likely will not have any paper showing an extension of warranty?

Thanks.

DmaxMaverick
03-18-2005, 23:37
The injectors are warranteed for 200K, regardless of ownership. You do not need to show any paperwork. The VIN will tell them all they need to know. You may want to take the VIN to a dealer to be sure it is included in the bulletin. Some were not, but that doesn't mean it won't be covered.

OC_DMAX
03-19-2005, 07:29
and for a maximum of 7 years.

MikeT
03-25-2005, 07:28
GM sent me a warranty addendum for the injectors.

Mike .T.

jbplock
03-26-2005, 04:16
Also see the 2001/02 Chevy/GMC Duramax 6600 Injector Warranty Extension (http://www.thedieselpage.com/duramax/lb7injectorwarranty.htm) article in the Members Area (http://www.thedieselpage.com/password.htm) for more info.

smile.gif

2bone123
07-25-2006, 10:55
Well, after having my fuel filter replaced due to a recall notice 6wks and 500mi. later I've noticed longer cranking interval before start up. I returned my 2003 Silverado DMax with 21000mi.and was called back about 2hrs later and told it was injector failure.He said that It would be covered under the Diesel Ext. Warranty with a $100 deductible. I have since seen past references on this site mentioning a Zero Deductible Extend Warranty on Injectors. Does anyone know if this is for specific years or where I can find the correct anwer to research this before I pay the $100 deductible?

DmaxMaverick
07-25-2006, 14:07
Your injectors could be covered under one of three warranties. Because your truck is a 2003, the extended injector warranty may not apply. That warranty has no deductible. Your truck also has a 100K/5 year OEM engine warranty, which covers injectors, and has a $100 deductible, and the 3/36 B to B warranty. Your dealer may or may not be able to decide which warranty to apply, but you need to find out which they do apply. Of course, the 3/36 warranty has no deductible. If they apply the 200/7 warranty, and charge a deductible, you are being gouged. Let them do their thing, and settle up when it's done. Check the bulletin or policy #'s they reference on your repair order and compare with known policies. If they are gouging you, they are probably gouging others, and that should be taken up with GM customer service to put a stop to it, and get your deductible back, if you paid it. It's not uncommon for dealers (of any brand) to charge deductibles when they are not due. Problem is, most folks just pay them and thank the dealer, grateful to get their vehicle back in working order.

Another thing that happens is the dealer will try to "buy" your warranty service survey. They will usually offer an oil change or two to get it. Recently, I received a phone call from GM customer service. They did a survey for service quality, and one of the questions asked was if the dealer attempted to get my survey card. This is not an acceptible practice for dealers, according to GM. My dealer didn't ask for it, but did request I be sure to fill it out and send it in.

crafty
07-28-2006, 05:35
Just got the truck back from having the number 1 injector replaced. This is the 2nd one to be done in the last year. The dealer says they can't do them all because GM wants to see the Balance rate numbers out of spec before they will pay for it. The recurring symptom I get is a knock at idle and an uneven idle. That is what I had both times when a bad injector was found. (Number 1 and 7 have been done now.)
This time they had to replace a fuel return line as well because the bolts got rounded out. I know I didn't do it so that just leaves the mechanic!!!! To the dealers credit, I was given a rental car for two days and they changed the oil for free too. The balance rate on the latest one was 6.0 and they won't change it until it is reading more than 4.0 plus or minus, out of spec.:D :D :D

2bone123
07-31-2006, 16:28
I picked up my 2003 Chev.with 21,200mi. after they replaced 8 injectors due to long cranking interval. They charged me the $100.00 deductible on the extended diesel warranty. My truck was 3 yrs. old on 5/15/06. They could not tell me why they failed so early and assured me that this was a rare occurance. I have changed the fuel filter 4 times since new and have not used injector cleaner per owners manual. I am at a loss as to what caused premature failure. Any thoughts or suggestions to avoid this happening again? Is this a poor design problem?

nlp
08-02-2006, 14:54
Can some one post a link to the 200,000 mi Injector Warranty for 2001-2003 lb7? Please?

Melvin P. Thorpe
08-03-2006, 13:38
check my hot start thread. My dealer said they don't replace 1 at a time because it always comes back later so they change out all 8 injectors. There was no cost to me for the injector pump or the injectors. 2003 w/75,000 miles.

Shed
10-10-2006, 06:03
I'm new to Diesels, and have alot of catching up to do! I have read about injector warranties for 01'-02' Duramax and am wondering what the heck this is all about? Can anyone tell me what was wrong, and what the symptoms were? How can I tell if this has been taken care of already? Is my 01' (69,000) still under the warranty? Thanks for any help!

Shed

PS I'm lovin this big black diesel! Can anyone give me info about maintenance issues I should look into with this truck? Just purchased about 2 months ago and want to keep her in top notch performance to pull my 5th wheel!:D

Pewter Max
10-10-2006, 19:50
Hello Shed
I just had all 8 Injectors replaced under the extended injector warranty ,
the symptoms on mine were decreased fuel mileage - skipping at idle - fuel in crankcase and service engine light .
My dealer ( Hardy Chev. in Dallas Ga. ) didn't give me any hassle and did it in 3 days .
The extended inj. warranty is good for 7 years or 200k miles and it goes with the vehicle , your dealer could give you the history on it with VIN .
Mine had 92k miles when it went down .
I have been using Amsoil synthetic from front to rear since it was new .
I pull an 06 31' Sunnybrook that weighs about 12k loaded and it works great - on a recent trip to Va. I got between 10 - 12 mpg running about 62 mph .
I keep looking at the new ones but this one still works Great !!
Welcome Aboard

Shed
10-10-2006, 21:34
Thanks for the info! I will definately check with the dealer on the injectors. Were these injectors "bad" or was this just something offered in these years? I am not having a whole lot of trouble with the truck, other than a pesky "srvc. 4whl drive" light that comes on right after start up! Thanks for your input, and if anyone else has ANYTHING for me, please keep it coming, as I said I'm a novice and need all the help and knowledge I can get my hands on! Thanks again.
;)

DmaxMaverick
10-10-2006, 21:49
The injectors are only replaced if they fail.

Your "svc 4x4" is an easy fix, usually. Check and reset the connector at the back of the button cluster. Easy to get to. Just pop off the IP trim and the cluster pops out after releasing the tabs. If it continues, the button cluster will likely need replacing. It isn't too expensive, IIRC. There is a possibility the motor on the TC has issues, but short of checking connections, it's not cheap to fix.

jbplock
10-22-2006, 05:51
Recieved my 03 7yr-200kmi Injector Warranty Extension letter ... http://www.thedieselpageforums.com/tdpforum/images/icons/icon14.gif

Owner Letter (http://www.thedieselpageforums.com/photopost/showphoto.php?photo=219&cat=500&ppuser=18444)

For those who paid for a replacement out of pocket ...

Reimbursement Procedure (http://www.thedieselpageforums.com/photopost/showphoto.php?photo=221&cat=500&ppuser=18444)

Reimbursement Form (http://www.thedieselpageforums.com/photopost/showphoto.php?photo=220&cat=500&ppuser=18444)

:)

ccole
12-20-2006, 11:19
Hello all,
I had a friend who recently purchased a used 2002 Chevy 2500HD with 103,000. We have noticed that it smokes a little blue at idle, which makes me think that it is a fuel issue (injector balance, etc). It sounds fine and runs fine, just has a minor blue smoke at idle. My question is, I somewhat recall GM has had some update bulletins regarding warranty of the injectors on the early LB7 motor. Does anybody out there have the details of these revised bulletins and/or if this vehicle still qualifies for warranty with 103,000 miles on it?

chipper
12-20-2006, 15:19
Extended Warranty is 7 years, 200,000 miles. No deductible.

ccole
12-20-2006, 15:39
Thanks for the reply. So does this "extended warranty" apply for all LB7 motors or was it something the owner have to sign up for/purchase?

More Power
12-20-2006, 15:52
2001/02/03 LB7 Injector Warranty (http://www.thedieselpage.com/duramax/lb7injectorwarranty.htm).

Jim

ccole
12-20-2006, 16:41
Thank you Jim.

fourtenposi
12-20-2006, 19:21
I heard that this warranty was voided if you run bio diesel, is there any truth to this?

Thanks

DmaxMaverick
12-20-2006, 20:45
GM approves up to B5. Higher than that, and you are on your own. The service manager can only deny warranty claims for stuff he knows about.

LaDuramax01
06-11-2007, 17:48
Bought my first chevy diesel , 2001 2500 with Allison. I gather from reading some other posts that the injectors are still under warranty for 7 yrs or 200K ?Mine has only 109,000 so when exactly does this warranty expire ? 12/07 ? Running good right know i just need to know my options if something happens. What other issues do these trucks have? On my old 98 Dodge it was lift pumps which these dont have, right ? Any help appreciated.

Duramaster
06-11-2007, 18:07
The special policy 04039A covers the injectors only for 7 years or 200,000 miles from the Vehicle In Service date. Which ever happens first. What is your VIN? I can tell you your in service date. :)

LaDuramax01
06-11-2007, 18:21
Vin# - 1GCHC29151E230932

Duramaster
06-11-2007, 18:28
Here is the VIN summary for your vehicle...............




VIN : 1GCHC29151E230932
VEHICLE INFORMATION
Merchandising Model : CC25753 -2001 SILVERADO LS 2500HD 2WD EXT CAB Warranty Start Date : 06/06/2001
BARS Order Type : 70 - RETAIL - STOCK
Delivering Dealer : JAMES WOOD CHEVROLET, CADILLAC, OLDSMOBILE
PO BOX 50779
DENTON , TX 76206-0779
(940) 591-9663
Selling Source : 13 - CHEVROLET
Site Code : 07090
Business Associate Code : 112277
Service Contract : Yes Branded Title : No Warranty Block : No PDI Status : Paid
REQUIRED FIELD ACTIONS
Type Number Description Posted Date Status
RC 01050 BRAKE SYSTEM WARNING LIGHT MAY NOT ILLUMINATE N/A Closed
RC 04007 TAILGATE SUPPORT CABLE N/A Closed
RC 05546 15,000 MILE - 24,000 KM FUEL FILTER CHANGE **IN EFFECT UNTIL SEPT. 30, 2006** N/A Closed
SERVICE INFORMATIONAL ITEMS
Vehicle Has No Current Record Of Outstanding Service Information
ON STAR AND XM SATELLITE RADIO INFORMATION
Vehicle Has No Associated On Star or XM Radio Information.
APPLICABLE WARRANTIES
Description Effective Date Effective Odometer End Date End Odometer
36/36000 BUMPER TO BUMPER 06/06/2001 366 miles 06/06/2004 36366 miles
72/100000 SHEET METAL COVERAGE RUST THROUGH 06/06/2001 366 miles 06/06/2007 100366 miles
96/80000 FEDERAL EMISSION CATALYTIC CONV. AND PCM 06/06/2001 366 miles 06/06/2009 80366 miles
60/100000 FEDERAL EMISSION 06/06/2001 366 miles 06/06/2006 100366 miles
60/100000 GM DIESEL ENGINE IN LIGHT DUTY VEHICLE WITH $100 DEDUCT AFTER BUMPER TO BUMPER 06/06/2001 366 miles 06/06/2006 100366 miles
CLAIM HISTORY
R.O Date R.O Number Type Labor Operation Odometer Reading
02/01/2006 560203 # V0755 - CHANGE PIN LOCATION 99460 miles
02/01/2006 560203 # V1242 - 04007 - INSPECT AND REPLACE TAILGATE SUPPORT CABLES INC. H 99460 miles
02/01/2006 560203 # V1380 - 05546 - REPLACE FUEL FILTER 99460 miles
01/18/2001 456933 # C8817 - MODULE, SDM (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM) - R 15 miles
01/03/2001 A30932 I Z7000 - PRE-DELIVERY INSPECTION - BASE TIME 0 miles






:D :D :D

LaDuramax01
06-11-2007, 18:40
Wow that was fast, Thanks .So, I'm good until 6/6/08 correct?

Dakster
06-11-2007, 20:06
Also looks like that is a good truck. Very little warranty work done...

LaDuramax01
06-11-2007, 20:15
Yea, thats what i thought too, i may have got lucky, Went to Ft.Worth saturday and got it, made the trip home just fine (6hr drive) and got 19 mpg. I was pretty happy with that.The only things i had to do was grease the slip yoke splines and the tensioner is bad, one on order. Runs strong and shifts out good.

Duramaster
06-11-2007, 20:46
No problem. :D

Philsauto
06-13-2007, 00:07
The special policy 04039A covers the injectors only for 7 years or 200,000 miles from the Vehicle In Service date. Which ever happens first. What is your VIN? I can tell you your in service date. :)

>>>>
Phils Auto, 2001 D/A, 152k miles
Would you do the same for mine?
VIN 1GTHC23191F145840

Thanks! Phil

Duramaster
06-13-2007, 06:55
Phil:

I sent the info to your buisness website e-mail. :)

truckin
06-14-2007, 09:43
Ok, I'm about to join the ranks of changed injectors also. My 2001 truck was still running well and getting good mileage but it had developed an idle surge and the injectors had become noisy (like a valve ticking) when accelerating. With 75,000 miles and a little less than a year left on the 7yr/200,000 mile warranty I figured I better get it checked. The tech determined the #5 injector was failing and will replace all the injectors per GM's bulletin. I only have to pay $100 deductable which is not bad for a job that costs several thousand. I'll let you know how it runs after I get it out of the shop today or tomorrow.

DmaxMaverick
06-14-2007, 10:47
Ok, I'm about to join the ranks of changed injectors also. My 2001 truck was still running well and getting good mileage but it had developed an idle surge and the injectors had become noisy (like a valve ticking) when accelerating. With 75,000 miles and a little less than a year left on the 7yr/200,000 mile warranty I figured I better get it checked. The tech determined the #5 injector was failing and will replace all the injectors per GM's bulletin. I only have to pay $100 deductable which is not bad for a job that costs several thousand. I'll let you know how it runs after I get it out of the shop today or tomorrow.

NO $100 deductible, per the bulletin. Your warranty that would require the deductible is only for 5 years and 100K miles, and should be gone by now. It's good your dealer is doing all 8 injectors, in accordance with the bulletin, but they aren't supposed to get any money from you for it.

LaDuramax01
06-14-2007, 16:15
Can someone post a copy of this bulletin, I'm sure i will need it to prove to the stealer it actually exists.

DmaxMaverick
06-14-2007, 16:32
Can someone post a copy of this bulletin, I'm sure i will need it to prove to the stealer it actually exists.

There are several bulletins that may apply. It will be according the the model year, VIN, and symptoms. They all say the same thing in the end....All 8 injectors at no charge to customer.

Click HERE (http://www.thedieselpage.com/password.htm), and then go to "Technical Service Bulletins". The bulletin that may apply to your truck will be there.

Duramaster
06-14-2007, 21:56
This is the "MEAT AND POTATOES" of the special policy. Pay attention to the second paragraph. ;)


Subject: Special Policy Adjustment - Injectors - Replace #04039A - (10/10/2006)



Models: 2001-2003 Chevrolet Silverado

2001-2003 GMC Sierra

2003 Chevrolet Kodiak

2003 GMC TopKick

Equipped with 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) Engine




--------------------------------------------------------------------------------

THIS BULLETIN IS BEING REVISED TO ADD 2003 MODEL YEAR TRUCKS. PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039, DATED MAY, 2004.


--------------------------------------------------------------------------------

Condition
Some customers of 2001-03 model year Chevrolet Silverado; GMC Sierra; 2003 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion, or high pressure seal extrusion (refer to Corporate Bulletin Number 04-06-04-007 and SI).

Special Policy Adjustment
This special policy covers the condition described above for a period of 7 years or 200,000 miles (320,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

Important: This special policy only covers the above noted failure modes, which are identified by high fuel return flow.

For 2001-2002 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 25, 2004, are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 25, 2004 must be submitted to the Service Contract provider.

For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 10, 2006 must be submitted to the Service Contract provider.

Vehicles Involved
Involved are all 2001-03 model year Chevrolet Silverado, GMC Sierra; 2003 Chevrolet Kodiak and GMC TopKick vehicles equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine and built within the following start of production to end of production VIN breakpoints:

Year
Division
Model
From
Through

2001
Chevrolet
Silverado
1E100028
1E346644

1F100001
1F213872

1Z100015
1Z100019

2001
GMC
Sierra
1E100021
1E346642

1F100010
1F213864

2002
Chevrolet
Silverado
2E100009
2E306435

2F100004
2F247804

2002
GMC
Sierra
2E100003
2E306345

2F100011
2F247974

2003
Chevrolet
Silverado
3E100002
3E381007

3F100003
3F259043

2003
Chevrolet
Kodiak
3F500015
3F522532

2003
GMC
Sierra
3E100003
3E381124

3F100008
3F259040

2003
GMC
TopKick
3F500001
3F900945


Parts Information
Parts required to complete this special policy are to be obtained from General Motors Service Parts Operations (GMSPO).

Part Number
Description
Qty/ Vehicle

97729095*
Injector Kit, Dir Fuel (Incls: Injector, Gasket, Seal)
8

97188896
Gasket, Valve Rocker Arm Cover (Reusable Gasket)
As Req'd

97228933
Gasket, F/Injr Fuel Return Pipe
8

97600925
Gasket, F/Injr Fuel Return Pipe
2

94011604
Seal, Water Outlet
1

12378521 (US)

88901148 (CN)
Sealant
As Req'd

97188463
Housing, F/Injr Noz
As Req'd

94051259
Seal, F/Injr Noz Hsg (O-Ring)
As Req'd


*P/N 97729095 is only available in a merchandising pack quantity of 4. Current order restriction limits availability to 8 injectors per VIN.

Customer Notification
Customers will be notified of the special policy on their vehicles by General Motors (see copy of typical customer letter included with this bulletin -- actual divisional letter may vary slightly).

Service Procedure
Refer to the latest version of Corporate Bulletin Number 04-06-04-007 and Service Information to perform diagnostics and fuel injector replacement for high fuel return rates.

Duramaster
06-14-2007, 21:58
And BTW LaDuramax01........................ OUCH! That word hurts! (stealership):p

LaDuramax01
06-15-2007, 05:50
Dont take it personal Duramaster, I know not all are bad, but i have had a few bad encounters with mine lately.Thanks for the info.

Duramaster
06-15-2007, 08:11
Yeah I see that as I'm reading here. Where are you lacated? :o

gillguy
06-15-2007, 08:45
I just bought an '07 Classic. Are the injectors on the '07 covered to the 200k also?

Thanks
BG

DmaxMaverick
06-15-2007, 10:01
I just bought an '07 Classic. Are the injectors on the '07 covered to the 200k also?

Thanks
BG

No. The 7/200K warranty only covers LB7's. Yours is an LBZ.

LaDuramax01
06-15-2007, 16:59
Yeah I see that as I'm reading here. Where are you lacated? :o
I'm in North Central Louisiana, small town called Jena, I will have to drive an hour to get a qualified diesel mech to do it.

truckin
06-15-2007, 19:15
Well, I picked my truck up this afternoon after having all the injectors replaced. I pulled out of the dealership and noticed the ticking seemed to be worse. It sounds like a valve but I believe it is fuel related because it only does it under acceleration. I called the service writer on my cell phone to let him know I still had a problem and see if I could catch him before he left. I stopped at a traffic light and noticed I also still had the idle surge. The service writer seemed irritated that the tech had not fixed the truck. I know they are graded on the customer surveys. I told him according to the research I'd done (mostly here) that the idle surge may be a problem with the fuel pressure regulator. I'm at a loss for what may be causing the ticking sounding with the injectors since they've been replaced. Maybe it's a computer issue with the fuel metering. Any thoughts? The writer said the tech should have reflashed the computer with this type of work but I have my doubts since it was not on the repair invoice. I left the truck and their diesel tech is supposed to look at it tomorrow.

Duramaster
06-15-2007, 22:12
The 04039a special policy does not cover reflash of the PCM. After replacing the injectors, if there is still a drivability concern I will then check the software as a courtesy. It only takes a few minutes to reflash the older DMAX trucks (less than 3 tenths of an hour). AS far as the tick goes, try this for size and see if this is what you ar hearing............... ;)







Subject: Information on Engine Ticking Noise #02-06-01-022F - (11/30/2006)



Models: 2001-2007 Chevrolet Silverado

2003-2007 Chevrolet Kodiak C4500/C5500 Series

2006-2007 Chevrolet Express

2001-2007 GMC Sierra

2003-2007 GMC TopKick C4500/C5500 Series

2006-2007 GMC Savana

with 6.6L Duramax

truckin
06-16-2007, 11:10
I think this bulletin refers to the infamous tick at idle on the Duramaxes. Mine had this at first and it has now all but disapeared and I rarely hear it anymore. The tick I'm referring to now only occurs when the engine is under load such as accelerating or pulling a load. It's not a random noise but is consistent and it goes away when you take your foot off the accelerator which leads me to believe it is fuel related.

Duramaster
06-16-2007, 14:04
Is it possibly an exhaust leak? :confused:

truckin
06-16-2007, 15:22
It sounds more like an injector to me. Almost like when the two-stage injection cuts out at high load/rpm conditions. I talked to the service writer today. He said the tech that worked on it today reflashed the computer. He said it took several attempts before the computer would accept it. Afterwards the tech test drove the truck and did not notice any noises or idle surge. He also said the fuel pressure regulator checked out fine. He is keeping the truck until Monday because he wanted the original tech that changed the injectors to check it out before they return it to me. Maybe I'm just to sensitive to changes on my truck. Hopefully they got everything taken care of. I'll let you know on Monday.

Philsauto
06-17-2007, 18:30
[QUOTE=Duramaster]This is the "MEAT AND POTATOES" of the special policy. Pay attention to the second paragraph. ;)


Subject: Special Policy Adjustment - Injectors - Replace #04039A - (10/10/2006)



Models: 2001-2003 Chevrolet Silverado

2001-2003 GMC Sierra

2003 Chevrolet Kodiak

2003 GMC TopKick

Equipped with 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) Engine



Duramaster:
I have the heads off my 2001 to replace the head gaskets. The GMC dealer said they wouldn't warranty the injectors until I got the gaskets fixed. Well, now that I have the heads off, I can see that driver's side is a bit of a pain. If I were a tech at the dealer, I'd sure rather flag the hours and only have to install the injectors in a couple of heads on the bench. What do you think is the chance they will install the injectors in my heads? They agreed that it needed them, but of course wanted to do the head gaskets under CP, then would probably have billed the full pop to GM for the injector replacement as well (just guessing, I did work at a dealer for a while and that one used every trick in the book to extract bucks from the factory).

The other question I have is, knowing that these injectors have to be replaced, should I pull the injectors and replace the sleeves and seals now, or let them do it if they won't replace the injectors now with the heads off?

My injectors are not too bad yet, but they are putting fuel in the oil. How does that happen? Does it overfuel and go past the rings or does it leak straight into the oil?

Dakster
06-17-2007, 19:56
[QUOTE=Philsauto They agreed that it needed them, but of course wanted to do the head gaskets under CP, then would probably have billed the full pop to GM for the injector replacement as well (just guessing, I did work at a dealer for a while and that one used every trick in the book to extract bucks from the factory).

The other question I have is, knowing that these injectors have to be replaced, should I pull the injectors and replace the sleeves and seals now, or let them do it if they won't replace the injectors now with the heads off?

My injectors are not too bad yet, but they are putting fuel in the oil. How does that happen? Does it overfuel and go past the rings or does it leak straight into the oil?[/QUOTE]

I might try a couple of other dealers. One may need/want the work and make a labor deal with you... Although it sounds like you are doing the gaskets yourself. And yes, I'd be suspicious of the dealer double-dipping. Although the tech will like it, unless the dealer messes with him/her. I'm sure duramaster would like to get paid for doing head gaskets and injectors on the same truck, but get the hours like they were done separate.

IMHO, if fuel is getting into the oil the injectors are "really bad" and should be replaced as soon as possible.

Duramaster
06-18-2007, 00:18
There are only three (maybe four) ways for fuel to get into the crancase on the DMAX that I am aware of: Leaky return rail banjo screw seals/ cracked pipe, cracked injector bodies, fuel pump shaft seal leak, poorous head where the fuel passes from inside the engine to outside the engine. Of course the head would have to be extremely poorous. As far as the double dipping goes............ Let me start by saying that I work at a shop that pays the techs by the hour. We are also members of the IAM District Lodge #24 Local Lodge #1005. :) Anyway, when we encountered a customer with the similar situation............. I don't know how the foreman handled the warranty claim. I know that the customer actually took the injectors and replaced the injectors themselves. We did the sleeves the first time (long story). As far as the sleeves go, Yes, reseal the sleeves since you have the heads off. Yes pull all the sleeves before installing the heads to make sure that the heads are not pitted where the sleeve taper seals against the head. And if the heads are good, I wouldn't put the sleeves and injectors in untill after you have the heads torqued into place. No risk of smashing the injector tips that way. ;)

Philsauto
06-18-2007, 08:24
There are only three (maybe four) ways for fuel to get into the crancase on the DMAX that I am aware of: Leaky return rail banjo screw seals/ cracked pipe, cracked injector bodies, fuel pump shaft seal leak, poorous head where the fuel passes from inside the engine to outside the engine. Of course the head would have to be extremely poorous. As far as the double dipping goes............ Let me start by saying that I work at a shop that pays the techs by the hour. We are also members of the IAM District Lodge #24 Local Lodge #1005. :) Anyway, when we encountered a customer with the similar situation............. I don't know how the foreman handled the warranty claim. I know that the customer actually took the injectors and replaced the injectors themselves. We did the sleeves the first time (long story). As far as the sleeves go, Yes, reseal the sleeves since you have the heads off. Yes pull all the sleeves before installing the heads to make sure that the heads are not pitted where the sleeve taper seals against the head. And if the heads are good, I wouldn't put the sleeves and injectors in untill after you have the heads torqued into place. No risk of smashing the injector tips that way. ;)

So the cracked injector body is leaking fuel directly into the valve area, if I understand correctly. The reason I say mine is not too bad is that the oil has only gone up by about 1 quart in 3000 miles. But then maybe it has just started to fail.

I'll contact the dealer that did the inspection and just ask them. It seems like a huge waste to have to pull this apart again. The passenger side is not bad, but the driver's side is kind of tight, with the steering column in the way and the bolts for the upper and lower rocker covers somewhat inaccessible on the rear. I had to rubber band in the rear lower head bolt and pull the head out with it still installed, and couldn't get the third back glow plug out either, without moving something since it bangs into the steering column. The other problem I had is the bolts that hold the exhaust outlet pipe onto the turbo were tightened to about 500 ft lbs torque and I almost killed myself getting them loose. I ended up leaving the two inlet pipes attached and the turbo sitting there. It wasn't a problem for disassembly but I don't know how easily it will go back together.

Don't those sleeves have to be driven into the heads with a driver? Why would I want to fight that with the heads already installed? I see your point on not damaging the injectors.

truckin
06-18-2007, 13:33
Well, I picked my truck up this afternoon after having all the injectors replaced. I pulled out of the dealership and noticed the ticking seemed to be worse. It sounds like a valve but I believe it is fuel related because it only does it under acceleration. I called the service writer on my cell phone to let him know I still had a problem and see if I could catch him before he left. I stopped at a traffic light and noticed I also still had the idle surge. The service writer seemed irritated that the tech had not fixed the truck. I know they are graded on the customer surveys. I told him according to the research I'd done (mostly here) that the idle surge may be a problem with the fuel pressure regulator. I'm at a loss for what may be causing the ticking sounding with the injectors since they've been replaced. Maybe it's a computer issue with the fuel metering. Any thoughts? The writer said the tech should have reflashed the computer with this type of work but I have my doubts since it was not on the repair invoice. I left the truck and their diesel tech is supposed to look at it tomorrow.

They still have my truck and cannot determine what's causing the idle surge. They said the fuel pressure regulator checked out but I'm still suspicious. It's not throwing any codes and they are on the phone with GM to determine what to check next.

Duramaster
06-19-2007, 08:22
As posted in this thread earlier (or was it another?), tHE TOOL IS :::::::::::::::::::::::::








J 45910

Fuel Injector Sleeve Remover/Installer


And yes you do need to drive the sleeve back into the head. It doesn't take alot to reseat the sleeve. Check you mail Philsauto.

EdHale
06-19-2007, 15:28
Duramaster,

I have a friend with a 2001 LB7 with a bit over 100,000 and he doesn't have injector issues yet, but he is looking for them. Would you be kind enough to run his VIN# to see for sure what his in service date and warranty issues were? He is the second owner of the truck. I would appreciate it very much.

VIN# 1GTHK23191F183751

Thank you sir.

Ed

truckin
06-21-2007, 18:21
I finally got my truck back today. They made me pay a $100 deductible for the injectors even though I asked them to double check since I didn't think I was supposed to. I got lucky and found my warranty extension from Chevrolet which stated in bold print "Injectors will be changed at no charge". I showed this to the tech who then looked on the computer and found the same verbage. Needless to say, they refunded my $100. I wasn't so lucky with the idle surge issue. They finally diagnosed it as........ you guessed it, the fuel pressure regulator. I suggested that may be the problem when I dropped the truck off. I guess they didn't like a shade tree mechanic diagnosing the problem even though I got the answer here. I wound up paying $910 ($510 for the part and $400 for the labor. I felt like it should have been covered but I couldn't argue since the warranty I had specifically said "Injector Replacement". I know I could have done it myself for half the price but I guess I have to look at it as I got a $4000 job done for $900. Anyway the truck runs great now with no idle surge.

Duramaster
06-21-2007, 20:52
The price seems a little high for the regulator (a lot actually). I will double check that one for you tomorrow. :o

truckin
06-22-2007, 14:42
The price seems a little high for the regulator (a lot actually). I will double check that one for you tomorrow. :o


I thought it was high also but I know GM has a fairly high markup on some of their parts.

Duramaster
06-22-2007, 18:37
Customer cost for the regulator at my dealership is $345.58!! :eek: :eek: That is for an LB7 regulator.

DFDureiko
06-24-2007, 06:32
I'm glad I read here about the injector warrenty. We have had a 2001 GMC Duramax about a year and a half, we picked it up with 47,500 miles on it. We've towed a 9800lb Aistream with it for about 10,000 miles. While in Perry GA, we filled up in the morning at FlashFoods Diesel off exit 149/I-75 and drove about two hours. that evening when returning from dinner I noiticed a "ticking" at part throttle that was not there before. The next morning we were attempting to get on I-75 when the "Service Engine Soon" light came on and we had greatly reduced power, and of course the engine did not sound right. I have a prited copy of the injector warrenty from this site.........question is: is it bad fuel or bad injectors?
Now it is sitting accross the street at a GMC dealer in Perry, GA. We're lucky we were not towing and also that we planned to be at this large Airstream Rally thru the 5th of July......
The salesman I spoke with had never heard of the special warrenty.
Friends have said in there travels they have gotton bad diesel in their trucks and motorhomes.......this is the first time this has ever happend to me, and I've put 50,000 miles on my VW Beetle TDi at home in CT. Is it common?
Thanks
Dan

DFDureiko
06-24-2007, 07:24
if in fact it is bad fuel, we have the reciept for the fillup of 17 gallons in a 25gal tank, are fuel stations responsible for the damage their bad fuel causes?
Dan

Duramaster
06-24-2007, 09:08
What usually happens is the customer pays for the fuel system flush and then submits the bill to the fuel station. You might want to contact the fuel station and see if they had anymore trouble with bad fuel that day.

DFDureiko
06-24-2007, 09:39
thanks for the quick reply. We'll wait to call the station till we talk to the GMC dealer monday morning. Who know's? perhaps it is the fuel injectors.
I've already looked up the GA department of consumer protection. I sorta think the station would deny everythig anyway.
Dan

DmaxMaverick
06-24-2007, 11:50
The fuel station is responsible for a bad batch of fuel. They will normally accept the dealer's diagnosis, and the insurance will pay. They could have their own inspection done, but it would likely just be another dealer. Either way, injectors or fuel, you are covered. You should contact the station immediately, before you get the bill. Sometimes, they will deal with the dealer, and you don't have to front the money. It doesn't (or shouldn't) come out of the station owner's pocket. It will be the distributor that is responsible. If it is a case of a bad storage system, the station owner should have insurance for such things. In most cases, you won't be the only one with a problem, unless you are the only late model Diesel that got fuel from there. Older Diesels tend to tolerate bad fuel much better.

In any case, be sure to retain a sample of the fuel the dealer said is bad. Get your own sample, if possible, but the tech should have pulled a couple quarts or gallons. In many states, they are required by law to retain a specific amount, and submit a form with the details and a sample. In CA, CARB gets involved with every case, and deals with the fuel distributors directly.

Dakster
06-24-2007, 15:05
I'll second Dmaxmaverick's posts. Been down that road before. The station owner was good about it. He paid the estimate the dealer gave and replaced the bad fuel with good fuel. remember you have now dumped 24 gallons of fuel and at almost $3/Gal that is another $75 you are owed.

Another hint in getting fuel is to not get fuel right after the truck has delivered. The filling up of the stations in ground tank tends to stir-up water and contaminents in the bottom of the holding tank. Filters are supposed to stop this from getting to your tank, but.... I don't care how well the tanks are maintained there is ALWAYS water and dirt in the tanks. I pumped a couple of quarts of fuel in a plastic container at a station I suspected had bad fuel and you could SEE the water separated at the bottom of the container.:( Needless to say I got my money back for the size of the tank of fuel I had, the bad part - the station owner dumped the two quarts with the water in it back into his holding tank, right in front of me. :confused: I'll never get diesel at that station again.

DFDureiko
06-25-2007, 12:10
turns out is is an injector, but it is a WIRING/electrical issue, 600.00 repair, or worst case replacing the injector for 1200.00 and is NOT COVERED under the extended injector warrenty. they said only a "high fuel return rate" would be covered.....why did I already know they would weasel out of it somehow. I would think a faulty injector is a faulty injector.......
Dan

Duramaster
06-25-2007, 13:03
Did you ask them about this?.......................





Subject: Special Policy Adjustment - Injectors - Replace #04039A - (10/10/2006)



Models: 2001-2003 Chevrolet Silverado

2001-2003 GMC Sierra

2003 Chevrolet Kodiak

2003 GMC TopKick

Equipped with 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) Engine




--------------------------------------------------------------------------------

THIS BULLETIN IS BEING REVISED TO ADD 2003 MODEL YEAR TRUCKS. PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039, DATED MAY, 2004.


--------------------------------------------------------------------------------

Condition
Some customers of 2001-03 model year Chevrolet Silverado; GMC Sierra; 2003 Chevrolet Kodiak and GMC TopKick vehicles, equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks, ball seat erosion, or high pressure seal extrusion (refer to Corporate Bulletin Number 04-06-04-007 and SI).

Special Policy Adjustment
This special policy covers the condition described above for a period of 7 years or 200,000 miles (320,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

Important: This special policy only covers the above noted failure modes, which are identified by high fuel return flow.

For 2001-2002 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 25, 2004, are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 25, 2004 must be submitted to the Service Contract provider.

For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 10, 2006 must be submitted to the Service Contract provider.

Vehicles Involved
Involved are all 2001-03 model year Chevrolet Silverado, GMC Sierra; 2003 Chevrolet Kodiak and GMC TopKick vehicles equipped with a 6.6L Duramax Diesel (RPO LB7 - VIN Code 1) engine and built within the following start of production to end of production VIN breakpoints:

Year
Division
Model
From
Through

2001
Chevrolet
Silverado
1E100028
1E346644

1F100001
1F213872

1Z100015
1Z100019

2001
GMC
Sierra
1E100021
1E346642

1F100010
1F213864

2002
Chevrolet
Silverado
2E100009
2E306435

2F100004
2F247804

2002
GMC
Sierra
2E100003
2E306345

2F100011
2F247974

2003
Chevrolet
Silverado
3E100002
3E381007

3F100003
3F259043

2003
Chevrolet
Kodiak
3F500015
3F522532

2003
GMC
Sierra
3E100003
3E381124

3F100008
3F259040

2003
GMC
TopKick
3F500001
3F900945

Duramaster
06-25-2007, 13:20
Actually, here's one better. Ask the tech if he/ she has put the injectors through the full test. Whenever I get one I command full fuel pressure and look for out of spec injectors. Also have them put it in gear. If the injectors go out of spec in anyway, replace them. 04039A

otis700
07-12-2007, 20:09
My 02 duramax, all stock, just got diagnosed for a second set of injectors. 1st ones at 69K mikes, 2nd set now at 130K miles. Ive been using the new GM fuel filters since they were available and changing every 10-15K miles. I use power services additive occasionally but thats it.

I hope this second set of injectors is an improved design over my 1st two sets. : )

Dealer will start the job Monday and so far tells me I am responsible for the diagnostics so far and sounds like some additional misc labor. He indicated the fuel rail pressure was down and depending if in spec after the new injectors are installed, there could be some more work.

Will see how much comes out of my pocket.................

Duramaster
07-12-2007, 21:10
Should be zero out of pocket. If they can't diagnose and repair the problem in the time that GM allows then that's too bad for them. If it gets ugly just call GM customer relations! :D

otis700
07-23-2007, 08:31
Update to my last post.

The dealer called me and indicated that it was in the middle of a little dispute with GM regarding replacing of the injector lines which were found to have excessive rust. The injectors are all being covered, but Gm is indicating it may not cover the injector lines ($1000) if the dealer determines if water in the fuel. Dealer had to pull sample of fuel and do a an overnight test to verify water not in fuel which was proven so I should, emphasize "should", be all set. Unfortunately, GM has not confirmed this as of this morning. Crossing my fingers.

What I dont understand is if GM's water-in-fuel sensor was designed properly, shouldnt it detect the presence of water? Why should the dealer have to perform a separate test?

Mark

Dakster
07-23-2007, 13:42
If you read previous posts on here and other forums the W.I.F. (water in fuel) sensor isn't the greatest. Do you check your fuel filter and drain water regularly?

However, I would wonder why the fuel/water separator isn't working by letting water get to the fuel lines before the injectors (if that is the line they are referring to).

In order for the WIF sensor to illuminate and set a code there needs to be enough water in the bottom of the fuel filter bowl to set off the light. Kind of works like your low coolant sensor, but in reverse. So if your water separator isn't working then no water will accumulate and no light/code will be set.

Hope this makes sense... Good luck...

Duramaster
07-23-2007, 15:41
That's kind of funny.............. Special policy 04039A references 04-06-04-007G which references 03-06-04-036A which has the tech clean, inspect and/ or replace the injector lines depending on how much damage the corrosion did to the sealing surfave of the line. I perform this operation all the time and my AVM has said nothing yet. :)

otis700
08-09-2007, 20:00
Well, I finally got my 02 duramax back 4 weeks from the day I dropped it off. Truck was in for 2nd set of injectors at 130K miles. 1st set went @ 65K miles. Truck's running great but kind of frustrating to have to get it home and have to put the hood up to replace the fuel filter as my dealer stated it's not covered under the injector warranty policy. There was no way I was going to run new injectors without starting off with a new fuel filter. Installing a second fuel filtration system over the weekend as well.

Also frustrating that I had to pay 80.00 for diagnosis despite my complaint that it should be covered.

Mark

Duramaster
08-09-2007, 21:59
That's funny about that fuel filter. I have always replaced the fuel filter when replacing the injection pumps on 6.2/ 6.5 and have more often than not replaced the fuel filter on the DMAX after injector replacement under warranty. Now truthfully the bulletin does not list the filter in the parts list, but when I replace the injectors I always order one additional seal that the bulletin does not list and I have never had the claim rejected.

JohnC
10-02-2007, 09:25
Anyone know if this policy has been extended to cover the early '04 LB7 engines? If not, any one know why not?

DmaxMaverick
10-02-2007, 10:30
Anyone know if this policy has been extended to cover the early '04 LB7 engines? If not, any one know why not?

Yes it has. There are more exclusions, but you can check the VIN range to find out if it's covered.

Burl
10-06-2007, 21:25
Where can I check the vin range? I too am watching close as I have a 2004 LB7 with 96,000 miles and if there is no warranty extension it may be time to move on.

Duramaster
10-07-2007, 00:14
The 04039A Special Policy does not cover 2004 model year. The 04-06-04-007G is the most recent "BULLETIN" that covers the diagnostics and repair procedures for the LB7 and yes that bulletin does list 2001 - 2004 LB7 engines but it does not extend the warranty on the injectors. If you send me your VIN in a private message I can e-mail your in service date and warranty coverage. ;)

DmaxMaverick
10-07-2007, 09:31
The 04039A Special Policy does not cover 2004 model year. The 04-06-04-007G is the most recent "BULLETIN" that covers the diagnostics and repair procedures for the LB7 and yes that bulletin does list 2001 - 2004 LB7 engines but it does not extend the warranty on the injectors. If you send me your VIN in a private message I can e-mail your in service date and warranty coverage. ;)


That could have been what I saw. The dealer tech I spoke to said they had done a couple 2004's under the policy. It could be an interpretation thing, too. Some dealers are more forgiving than others. I'll see him again this week, so I'll verify.

Burl
10-07-2007, 20:08
Makes me nervous if in fact there is no warranty after 100K. I have had almost no trouble with this truck and it gets 20mpg routinely. I change the fuel filter every 10k miles and run fuel treatment periodically. You hear all the horror stories here but I wonder how many trucks have high miles and no injector problems.
One entire injector replacement equals roughly another year's payments.

Just thinking out loud.

Anyone els have any thoughts?

Burl

Burl
10-07-2007, 20:13
Does a 2004 LB7 have a newer/better updated injector that would reduce the typical LB7 problems?

Duramaster
10-07-2007, 21:34
I have an '04 LB7 in the shop right now waiting for a new set of injectors. ;)

smokester
10-08-2007, 22:10
I am about 90% sure that my truck has injector issues. I get white smoke (mostly at idle) that makes people gag when they're parked next to me at a stop light. Last and first (I just bought the truck a few months ago) oil change, i noticed that the oil was very runny and smelled of diesel like no other, however it didn't seem like there was really too much oil in it (but I didn't exactly measure how much came out). The smoke really started to bother me so I went to the local dealer and he told me that some of the signs of injector problems were white smoke and fuel in the crankcase. Even though I told him that my truck did that he said that the check engine light would come on if there was an injector problem. I also asked if the injector warranty was extended for my truck and he said it was for the 01-02 but not 03. But I'm hearing that it was, and the way to know is by the vin. Can anybody here tell me if mine is covered? '03 chevy 2500 duramax.

Thanks

oneton
10-09-2007, 12:53
Smokester, I'm running on my original injectors at 160,000 on my 02 and just recently noticed some smoke at idle but she hasn't thrown any codes yet. I'm sure hope someone here will let us know what the scoop is with it.







David

Philsauto
10-09-2007, 12:55
I am about 90% sure that my truck has injector issues. I get white smoke (mostly at idle) that makes people gag when they're parked next to me at a stop light. Last and first (I just bought the truck a few months ago) oil change, i noticed that the oil was very runny and smelled of diesel like no other, however it didn't seem like there was really too much oil in it (but I didn't exactly measure how much came out). The smoke really started to bother me so I went to the local dealer and he told me that some of the signs of injector problems were white smoke and fuel in the crankcase. Even though I told him that my truck did that he said that the check engine light would come on if there was an injector problem.


He is not correct on the check engine light question. My truck had the same issues as yours with no check engine lamp and no codes (though mine is a 2001); fuel in the oil, smoke at idle. With a new set of injectors, no fuel in the oil, no smoke.

The warranty is a moving target. At one time all 2001 to 2004 LB7s were covered but that was rolled back to only the 01-02 models. As has been mentioned here, it seems that some dealers are doing courtesy warranties, but the bill is huge, both labor and parts, particularly if you have to do the sleeves, and GM is not in that great of shape, so it is small wonder they are balking at footing the bill. You might try a different dealer to see if they will be willing to do something.

Burl
10-09-2007, 21:29
What is my dollar exposure if I was out of warranty and needed all 8 injectors?

smokester
10-09-2007, 22:01
Well, I took it back to the same dealer after calling the customer care 800 number and verified that my truck was indeed included in the warranty extension (they said it was under the bulletin that was listed in the beginning of this forum 04039A.)

So, i took it back to the same dealer who previously told me it was not covered and when I mentioned that I talked to customer care and they said it was covered he acted like he knew all along that it was covered "yeah the '01-'03 models are all covered" "but you should have received a bulletin in the mail". "I just haven't seen any '03's come in for injectors. Then he said he wouldn't be able to get to it for about 3-4 weeks and after he gets it in it could take a week or two. Anyway, told the guy to piss off and took it to another dealer in the area who said they'd have it done by Thursday. So here I am one day figuring out how I'm going to pay to put new injectors in my truck and the next day getting them fixed for free, thanks for the info on the forum guys!

smokester
10-09-2007, 22:09
Well oneton, I don't know much about mechanics and especially nothing about diesels but from what I hear fuel in the oil is the magical sign, if you have fuel in the oil and smoke then the dealer (if he has a clue which obviously I didn't have any luck with my first one) should assume injector issues. As far as knowing if there is fuel in the oil the only way I knew really was the smell of the oil when I changed it and how runny it was. But if you drain the oil and get more oil out of it than it should hold which I think is 10 quarts (don't quote me on that) that could point to fuel in the oil too (again I don't know much about this crap but that's what I'm hearing. So, if you have those signs then I wouldn't hesitate to take it in cause I don't think its really all that great to run your truck on diluted oil. And the dealer should cover it under that special bulletin.

GOOD LUCK!

oneton
10-10-2007, 07:40
Thanks Smokester. I can't say that my truck is making oil but I am keeping a closer eye out for it. I'm in a little different situation when it comes to smelling for fuel in the oil. I have to rely on other people for that because I have absolultely no sence of smell. Strange I know but I can't ever remember being able to. I guess the only real way to find out is to have my oil sent out and tested. I remember guys here sending their oil out but I can't remember the company that they sent it to. Anybody know?







David