I have a 1993 5.0 liter motor with fuel injection. I also have two fuel tanks. When running, does the fuel pump run all the time? My pump in my first tank is very noisey and I can hear it when I am idling or sitting still. When I switch tanks, the noise goes away.

Any comments????

Thanks,

Lee
farris@apk.net

 

The pumps get power in the start mode and while it's running. Runs all the time.
Sounds like you have a pump on it's way out.
Does your truck have in-tank pumps only, or a frame mounted pump as well?

SL

 

In my 1993 F-150 truck, where are the fuel pumps located - in the gas tanks????


Thanks,

 

Yes, and I checked earlier about your truck having an additional frame mounted pump. None listed, so just tank pumps in yours.

SL