Enthusiast
Lost power?
Ok so I put 4inch exhaust on my 6.2 I had a bunch of problems with it not starting after that I finally got in running sounds good but iv lost alot of power before it had a lot of go I could get it up to 100 pretty quick and burn the tires off now I do good to get it up to 50 and it won't even spin out on dirt any ideas on this
Administrator
Did you upgrade the muffler bearings?
You might also consider changing the fuel filter.
Enthusiast
Haha ha ha filters are new
Enthusiast
still really sounds like you are not getting enough fuel.
When you step on it does make some smoke?
1996 Chvy 3500 CCDWLB 6.5 Heathed, NO vac, marine injctrs, ARB bumper, BIG pipe, 3" lift, bright lights, bypass oil system.
1986 Chvy 6.2 M1009 blazer RAM AIR, Headers, Custom interior
2001 Chinook RV, V10 gas
1974 John Deere 1530 diesel tractor
1993 John Deere 455 Diesel lawn mower
1967 GTO, 1989 Honda Transalp
2009 VW Jetta TDI, flashed and piped, 6speed, fun car!
1998 6.5 suburban, stock, daughter's
1993 6.5 3500 CCSWLB GM8, Heathed, big exhaust, gauges, Son's
1984 6.2 ATS turbo 3500, SCDWLB - Son's
3 kids, 1 wife, 1 dog
Gunsmith, Tactics Instructor, Fabricator USMC 87-93 Semper Fi!
Enthusiast
Yes sir it black smokes I thought about turning it up and see what happens
Enthusiast
what's this in?
Please fill out your signature with your truck, year, make, model.
Do you have an EGR engine (vin C)?
Do not turn up the fuel, it sounds like you have plenty already with the black smoke comment. You may have an EGR valve trying to open causing your lack of power and creating black smoke.
J
1982 C10 SCSWB 6.5TD, mods too extensive to list. (13.69 1/4 mile @94.6 MPH) RACE TRUCK
1982 C10 SCSWB 6.2NA, 2.73 700
1986 C10 SCLWB 6.2TD 3.73 700
1989 V20 SUB 6.2NA, 3.73 400
1994 G20 VAN 6.5NA, 3.42 60E
1994 K20LD ECSWB 6.5TD, 3.42 80E
1995 K20 SUB 6.5TD, Wrecked, ran into by stupid teen.
1995 C3500HD DRW 6.5TD, 12' Flatbed 5.13 80E
1995 C3500HD DRW 6.5TD, 18' Rollback Wrecker 4.63 80E
1994 C20HD ECLWB 6.5TD 3.73 80E Wifes Truck.
1995 C20LD ECSWB 6.5TD 3.73 80E
1995 K20LD SCLWB 6.5TD 3.73 80E
1996 K30 DRW 6.5TD 4.10 80E
1997 C10 Tahoe 2Door 2WD 5.7L to 6.5 Conversion Underway
Enthusiast
It's a 82 chevy truck 4x4 6.2
Enthusiast
Don't turn up the fuel.
As stated above, is your truck an EGR engine? Can you tell us what it looks like in the intake when the air cleaner is removed? Does it have a "dohicky" mounted inside the intake or is it just wide open?
Does your driver side exhaust manifold have a restrictor valve in it? This would be right at the outlet of the manifold.
1996 Chvy 3500 CCDWLB 6.5 Heathed, NO vac, marine injctrs, ARB bumper, BIG pipe, 3" lift, bright lights, bypass oil system.
1986 Chvy 6.2 M1009 blazer RAM AIR, Headers, Custom interior
2001 Chinook RV, V10 gas
1974 John Deere 1530 diesel tractor
1993 John Deere 455 Diesel lawn mower
1967 GTO, 1989 Honda Transalp
2009 VW Jetta TDI, flashed and piped, 6speed, fun car!
1998 6.5 suburban, stock, daughter's
1993 6.5 3500 CCSWLB GM8, Heathed, big exhaust, gauges, Son's
1984 6.2 ATS turbo 3500, SCDWLB - Son's
3 kids, 1 wife, 1 dog
Gunsmith, Tactics Instructor, Fabricator USMC 87-93 Semper Fi!
Enthusiast
Yes it has the egr valve in the intake and yes it has the dohicky on the manifold
Enthusiast
Howdy
Do a search on this page for "remove egr"
It will pop up some good threads.
A good one right at the top is something like "J code worth it?"
This will help explain what we are talking about and how it can limit performance.
Just out of curiosity....do you know what gears you have? None of my trucks will easily hit 100.
1996 Chvy 3500 CCDWLB 6.5 Heathed, NO vac, marine injctrs, ARB bumper, BIG pipe, 3" lift, bright lights, bypass oil system.
1986 Chvy 6.2 M1009 blazer RAM AIR, Headers, Custom interior
2001 Chinook RV, V10 gas
1974 John Deere 1530 diesel tractor
1993 John Deere 455 Diesel lawn mower
1967 GTO, 1989 Honda Transalp
2009 VW Jetta TDI, flashed and piped, 6speed, fun car!
1998 6.5 suburban, stock, daughter's
1993 6.5 3500 CCSWLB GM8, Heathed, big exhaust, gauges, Son's
1984 6.2 ATS turbo 3500, SCDWLB - Son's
3 kids, 1 wife, 1 dog
Gunsmith, Tactics Instructor, Fabricator USMC 87-93 Semper Fi!
Enthusiast
I'm not sure about gears but before it would haul some ass and the vacuum on the egr valve that go's to the little box thing with coper wire in it broke free from whatever it's supposed to be mounted to and u can see the wire on the in side of it could that be it cause it's not working I looked up what it's supposed to do and it's not doing it
Enthusiast
so can i just do a erg delete like i would on a gas engine
Enthusiast
I'd replace the intake manifold with a non-egr version. As a test you can disable the EGR by plugging the hose going to the EGR valve.
search for uniquediesel, they have J code intakes.
J
Last edited by john8662; 06-16-2015 at 13:25.
Posting Permissions
Reply With Quote