Engine/Transmission (1998.5 - 2002) changed lift pump tonite on 02, took about 40 min

[emarsh]

I can update on tools needed for a 02 and state that you should loosen the fuel filter FIRST and let it fall out of the way so you can do the job from the top. Tools needed (preferred) 1/4 drive rachet with a 1/4 dr 10mm socket, a 1/4 dr 1/2" socket, and a 3/8" rachet with a 17 mm socket. Have 4 banjo washers handy if possible, and don't forget the harness adapter if you have the latest pump.

I would like to add that at 11k miles, the NEW pump made absolutely no difference in pressure readings, still 9 idle, 7 at cruise, and 5 at WOT. I do now however, have peace of mind for our out of state trip, and the original pump as a spare, just in case.

I don't think even DC knows exactly when the pumps should be changed, as long as you have a positive pressure at WOT I can't see how you could hurt the vp44, thats my opinion, and I am sticking to it!

 

[Rcpilotlv]

Good job, Its sad that with a 02 you already had to change your pump... When someone comes out with a complete kit for a fuel pressure gauge(ie everything for electrical gauge)supplies, I guess I have to get one... Whats scary is what you said about DC. . If there is a complete kit, members let me know Why didnt they change that under warranty?

 

[Turbo Trucker]

Yikes! That sounds low for a brand new pump. Mine has 119k on it, and it gets 8/4 at idle/wot.



I was thinking of changing it, maybe I'll wait though. I also think that if you have positive pressure the injector pump is obviously getting more fuel than it needs.

Originally posted by emarsh

I would like to add that at 11k miles, the NEW pump made absolutely no difference in pressure readings, still 9 idle, 7 at cruise, and 5 at WOT.

 

[OutbackDiesel]

I changed my pump three days ago. Some say to drop the starter, but I wouldn't. I took the fuel filter canister completely out and did it from the top. Be careful not to lose the sealing washers on the banjo fittings. I get over fifteen at idle (my gauge reads only to 15 psi) and maybe about thirteen floored.

 

[Gary - K7GLD]

HMMmmm - seems several of the later trucks have displayed lower pressures than the older ones with either stock OR replacement pumps - may just be my poor memory or imagination - but makes me wonder if later trucks may have different internal restrictions in their fuel systems that cause less observed operating fuel pressure than the older - possible more restrictive - ones?



Maybe it's just my old age and approaching senility...