2002dodge diesel 3500 truck has 27 lbs of fuel pressure but acts like it is running out of fuel . Changed fuel filter. What do I check now.
SOURCE: 99 dodge ram 3500 5.9 turbo diesel fuel problem
It is my understanding that the fuel lft pump has been replaced( updated) and is now gone back to the old way and is re installed in the tank.
I have had to put 3 lift pumps in since new, little did I know but Cummins tells me that the lift pump delivers minimal pressure and shortens the life of your injector pump.
So if that is true perhaps it is best to eliminate the lift pump and go with the new in tank pump. I plan on doing it the next time I have a problem.
SOURCE: 2004 Dodge Ram 2500 Diesel
do you still have the old style lift pump. located on the fuel filter housing or has it already been updated to in tank style. sounds like that to me. i've done a ton of them. chrysler has a whole conversion kit for this mod
SOURCE: 99 dodge 2500 5.9 cummins fuel pressure at 3psi
The 3 psi is caused by a failed transfer pump. The problem the loss of could be the VP44 injection pump. This pump should be run at min 7psi. I had the same fuel pressure problem. I replaced my stock transfer pump with a FASS DDRP from www.usdieselparts.com. The stock pump is over $200 to replace and will fail again, sometimes right out of the box. The DDRP will supply about 15psi to the pump and is simple to install. I hope this helps.
SOURCE: Where is Fuel Relay for 2004 Dodge Ram 3500 Diesel Truck
it doesn't have a fuel pump relay it has a fuel pump control unit and it is located on the chassis back quarter drivers side near the tube cross member for chassis on top of chassis rail near bed mount. locate the rear springs front perch and it will be above that on top of rail.
hope this helps. good luck and please ask any question you have.
Testimonial: "Thanx for info..no wonder I couldn't find Relay! "
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