Donnel76

Yeah i replaced that a year ago, totally feels the same. Idk, just glad i have a back up truck.lol Tried the trick with unhooking negative terminals and leaving key on over night no change. Im really thinking i got to much air in the pump. If the pump is bad do the trucks always smoke? Mine only blew a big grey cloud 1st day, but now doesbt smoke a bit. Idk im totally baffled. Thanks again for all the replies and helo. Clayton

Runs fine, just no power. If i floor it it only goes to 2000rpm then just holds there. It did have a hiccup, but now it seem to run smooth, just now power.

Yeah, its getting good fuel flow threw the injector lines. I blead the pump ,the fuel filter canister, and the fuel injection lines, there was some air in the pump at the vaulve, thought that would have fixed it, but still has no throttle after 2000rmp.

I went over all of the work i had originally did this morning, everything looks good. Thinking i may have fried the pump (with air )Im going to try and clear codes and reset the truck. If that doesnt work looks like ill load her up on my trailer and take her in. Funny i tryed to save $ and do it my self,(simple install i thought) now probly going to cost me, Lol.( live and learn) These trucks are usally so easy to wrk on, ( thats why i bought 2 of them). Crossing fingers. Thanks for all the responses guys, i appreciate it. Clayton

I did get some codes pulled now, and man there was alot.rrrr frustrating! P1688- Internal fuel injection pump controller malfunction P0253-Pump valve open circuit P0252-fuel valve signal missing P0251-fuel injection pump mechanical malfunction P1488- Auxiliary 5volt output to low P0522-oil pressure sensor low P0237-Manifold pressure sensor voltage low. Insane im throwing all these codes now from replacing 1 small 5min part on side of fuel filter bowl. Trucks getting fuel to all the injector lines, i bleed them thinking it was air in the lines. But now with all these codes im hoping i didnt mess up my pump. But trucks nt smoking, starts rite up, just wont get above 20mph and 2000rpm.

Have trouble getting my old 2001 Cummins work truck to run. Truck ran great but was leaking fuel from drain plug on side of the fuel filter housing, so i changed it out. Truck was hard to start, then would run, but would die if i put it in gear. Did this acouple of times, then bucked and saw big cloud of grey smoke come out of tail pipe. Now truck is in what seems to be limp mode( iknow these older trucks dont have them) but truck will not go over 2000 rpm. Theres no more smoke at all, just has no power ,Thought maybe i had air in the fuel lines so ive tried first with the lift pump valve , and then cracked the injector lines, still nothing has changed. Totally stumped.