Engine/Transmission (1998.5 - 2002) Another Lift Pump Question

[TKilgore]

Fuel pressure is from VP connection.



Fuel filter just changed. No crud in canister.



Problem: my pressure is down to ~12 @ idle. (was 15) Heavy throttle can get down to ~5 (was never below 11)



Is this typical of a dying lift pump? I am going to get a spare anyway but was wondering what to expect out of this one.





Thanks

Tom

 

[Shovelhead]

Doo-do-dooooooo, doo-do-dooooooo. (sounding taps over your lift pump).

Yup, sounds like it's on it's way out.

Do you have a "full time" fuel pressure guage, or a "Briar style"?

It could last a couple of months or a couple of days.

Keep an eye on it.

 

[TKilgore]

Was afraid of that

Yes, its autometer full time.



Thanks for the reply. Also on one short trip ~1 hour about 40 minute into the trip the pressure really dropped (like down to 1-2 lbs) so I brought it home and changed the filter. Haven't tried that length of time again yet but will this afternoon getting the spare.



Thanks again



Tom

 

[TKilgore]

hate it when your right

New pump in and pressure back up. Now can't get below ~11 no matter what.





This sucks. How long will this one last?





Anyway, thanks





tom

 

[Gary - K7GLD]

IF ya have the time and inclination, might be educational to disassemble the pump - paying special attention to the built-in fine mesh screen filter - it might just need cleaning to return it to service - of course, careful inspection of the rest of the pump, rotor, bypass valve, etc. , is a good idea as well...