08 Dmax Car Hauler

[dually2002]

At 70 mph engine losses power with accomping reduce engine speed warning change fuel filter. Changed filter no help. Has raptor lift pump installed which is working. Truck is owners main source of income and all help is appreciated. Thanks

[rapidoxidationman]

Got codes?
Wouldn't be a P0087, would it? Some good reading in one of the sticky threads at the top of this subforum page.
Ah. Here it is:
http://www.thedieselpageforums.com/tdpforum/showthread.php?t=35292

[Kennedy]

At 70 mph engine losses power with accomping reduce engine speed warning change fuel filter. Changed filter no help. Has raptor lift pump installed which is working. Truck is owners main source of income and all help is appreciated. Thanks

I've done a good many of these with near 100% success. My twin Lift pumps and ECM programming.

I set up a detailed Tech tip: http://www.kennedydiesel.com/docs/Duramax%20LBZ%20and%20LMM%20P0087%20Low%20Fuel%20P ressure%20code.pdf

Several other related tips worth reading as well.