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Duramax 6600 Discussion Forum for the Duramax 6600 Diesel Engine, including the LB7, LLY, LBZ & LMM engine specific topics.

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  #11  
Old 01-16-2007, 01:53 PM
Fin_Woozle Fin_Woozle is offline
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Default Lift pump?

Similar to the one in the 6.5td?
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  #12  
Old 01-16-2007, 03:17 PM
Kennedy Kennedy is offline
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I actually make a kit specific to the Dmax. Listed on my site under Dmax Parts/Lift pump or Pump-filter combo.
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  #13  
Old 01-16-2007, 04:48 PM
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Quote:
Originally Posted by Fin_Woozle
Similar to the one in the 6.5td?
John's Lift Pump is the way to go but the 6.5TD (AC EP158) pumps will work too .. I have one on my 03 ... Duramax Lift Pump & Pre-Filter

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03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn, UOA History
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  #14  
Old 01-16-2007, 05:20 PM
Fin_Woozle Fin_Woozle is offline
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Default Lift pump

Ok. Thanks John and Bill.
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  #15  
Old 01-16-2007, 06:46 PM
Kennedy Kennedy is offline
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The 6.5 pump is OK for general use, but as the HP increases, we see a need for more volume yet. My single pump might get a guy by, but teh twins are pretty much always successful with the LLY and LBZ fuel issues.
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More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.

Custom tuning in house using EFI Live tuning software!
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  #16  
Old 01-17-2007, 09:38 AM
mdors mdors is offline
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Had the same problem this morning. Truck was running fine I stopped for a traffic light. When I went to accelerate the truck would not go faster than 25 mph. Check engine light came on. I let the truck idle for 2-3 minutes and problem went away. I checked the trouble codes and p0106 manifold absolute pressure and p0700 transmission condition codes appeared. I have a S&B filter, 4" turbo exhaust and preditor with the 40hp program inatalled. Maybe these two problems are related. The wix fuel filter has about 3000 miles on it. Any help will be appreciated.
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  #17  
Old 01-31-2007, 05:23 PM
gatormanpc gatormanpc is offline
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Exact same thing happened to my 2007 with air intake, exhaust and programmer
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  #18  
Old 02-01-2007, 02:00 PM
gatormanpc gatormanpc is offline
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Default It happened again

It happened again the very next day. Changed the fuel filter and reset the DCT put the programmer back on and drove the heck out of it for about an hour and seems to run fine. I drove my 2003 for 15000 miles before I changed the filter; my 2007 only had 3900 miles. Looks like I
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  #19  
Old 03-01-2007, 01:19 PM
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Bill, I like the setup you have there. Why the timer and so on? If it is switched on with oil pressure that should be enough. Sure a little nudge won't hurt but is it really needed?

FB
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  #20  
Old 03-01-2007, 05:38 PM
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FB

[FONT=Times New Roman][FONT=Verdana][SIZE=2]Your right, the one-shot timer isn't a necessity. It enables pump relay to prime the system as soon as the key is turned and runs the pump during the glow cycle. After the timer cycles the engine is running and the oil pressure switch (OPS) takes over supplying power to the pump relay. When I first installed the pump I didn
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03 2500HD D/A CC/SB/4WD,OilGuard, MegaFilter,LiftPump/PreFilter, Bilsteins,RetraxRollTop,J&J Boards,Coolant Filter,AlliDeepPan,FastIdle,AllHeadLightsOn, UOA History
98 K3500 6.5,SOLD
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