reduced engine power

[Kennedy]

Fuel filter first, and consider adding fuel lift supply pump(s) to get best life from your filters and most consistent performance.

[Fin_Woozle]

Similar to the one in the 6.5td?

[Kennedy]

I actually make a kit specific to the Dmax. Listed on my site under Dmax Parts/Lift pump or Pump-filter combo.

[jbplock]

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

[Fin_Woozle]

Ok. Thanks John and Bill.

[Kennedy]

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.

[mdors]

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.

[gatormanpc]

Exact same thing happened to my 2007 with air intake, exhaust and programmer

[gatormanpc]

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

[FBJR]

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

[jbplock]

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

[FBJR]

I would not do any fuel pump without the OPS, just common sence

THX

[6.6Turbo]

same thing happened to me this morning. Was your truck rattling at the time. My engine light and the rattling never cleared though. Just replaced the fuel filter a month ago. 800 or so miles.