5.9 Cummins fuel problem (Still)
We own a 99 HR Endeavor with the 5.9 Cummins. Last year after returning from a 4 month winter trip we wanted some maintenance done. My mechanic called me and told me he had trouble starting the MH. H...
Forum Discussion
What I have read online has told me this: A weak or failing lift pump will ruin a good VP44 injection pump(expensive). However, the VP44 is strong enough to suck fuel from the tank even though the lift pump is not working properly.
However, letting the VP44 suck fuel is bad because it will overheat and get ruined also.
However, letting the VP44 suck fuel is bad because it will overheat and get ruined also.
