My original lift pump went over 270,000 miles, it died right before Christmas last year and was replaced with the in-tank version. I have had nothing but he## with the fuel system since. I've lost the CP3, the fuel rail over pressure valve twice, my fuel gauge is off by almost 3/8th of a tank (I ran out twice) and I am now having hard starting and injector issues. The truck was great for 270K, but has turned into a piece of cra# since then.

 

103,852
New u joints and carrier bearing but otherwise a great truck.

 

to the scene of the first breakdown. at 32k mi. now it has the intank pump after two other failed pumps. it is at the stealers now for a cracked exhaust manifold.

 

do the intank lift pumps go bad? i am having a pretty hard time getting my rig to fire up consistantly. It was starting very hard, I changed the fuel filter thinking it was that, no dice. I blead my injectors, fule filter case, etc. still starting very hard. After i carnk it for awhile i can hear my pump kick on. Any ideas would be great.

 

darn, thought I was the fastest until booneman posted

 

55,000 miles and still going.

 

38 Months and 93,000 miles or so and pushing 7.5/4 psi (Idle/WOT).
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Where is the wood, gotta knock on the wood....

 

I went 50,000 miles. Cummins warranty covered the cost and they relocated the lift pump from the engine to the fuel tank. They also replaced the injector pump as well. Thank you Cummins for a great warranty.

 

see sig.. I think mine was 22,467.. replaced with the 05 in tank pump unit, been flawless since, got almost 30k on it now.
Scott

 

It isn't totally dead. I changed the fuel filter because, with the drain open it would move plenty of volume, when the key was cycled on. After the filter was changed it runs. Very black and gooed up. However, the lift pump can't make enough pressure to cause it to cut out, when the key is cycled on, and it just runs continiously.

 

Let me see!! This is for the 04.

First one around 40000km

Second one around 75000km

Then the High Pressure unit around 110000km

Third one around 120000km, finally in the tank

 

240,000 miles, and I see it lasting a lot longer, am I cheating?

 

43,000 miles. warranty covered it.

 

just over 43k. miles and still going but it has been getting help from a Holley blue for the last 10k.
I will probably end up with a FASS soon to support other mods.