Engine/Transmission (1998.5 - 2002) Lift pump rebuild

[TORQUE THIS]

Is there such a thing??



What is in the lift pump that makes it fail?

 

[KennyM]

There was a thread about this around a month ago. With good detail on what to look for and what to fix.

 

[TORQUE THIS]

I did a search with no luck, I thought I remember reading something about it. I even seem to remember pics of one all apart, not sure if it was the same thread.

 

[Gary - K7GLD]

It had to do with carefully disassembling the pump and inspecting the tightness of the 3 thru-bolts that hold everything together - and inspecting the condition of the gasket that seals the cover to the pump body. Apparently, sometimes the gasket compresses or deforms to the point the pump impeller no longer seals or functions properly - frequently, assuming no other physical or electrical problems, simply turning the gasket over and carefully reassembling will return the pump to useful service. Of course, a careful inspection of the rest of the pump elements, and making sure the internal filter screen is clean is also a good idea...

 

[99guy]

LP repair thread:

https://www.turbodieselregister.com...?s=&threadid=61834&highlight=lift+pump+repair



Some Pictures:

https://www.turbodieselregister.com...ge=15&highlight=lift pump repair&pagenumber=3



I was in my Cummins Parts house yesterday and some lucky feller picked up one while I was there. At least their consistent ...

 

[mbrolin]

Consistent is right. 3 pumps X 12000 miles = 36000 miles. I figure pump #4 at 48000 miles. :--)