chad.durnal

i have an '01 xlt 4x4 with 62,xxxx. whenever my truck is running, there's a constant, loud, high pitched hum coming from the left side right by the gas tank. it's only when the truck is running. i'm assuming my fuel pump is slowly going bad, but i thought i would check here for any other possibilities.
also, if it is the fuel pump, where should i look to get another one?

thanks!!

FOMOCO466

yep it's the pump either going bad, or trying to work alot harder than it should due to a dirty fuel filter... there is also a filter on the pump in the tank that filters the fuel before it goes into the pump.

autozone, advanced, ect... will have the pump and the fuel strainer ( goes on bottom of the pump) and the fuel filter

the fun part is dropping the tank to swap it....alot of people will just take the bed off the truck and work it that way!

chad.durnal

should i try just switching out the fuel filter first and see if that helps?

Worf

My experience with fuel pumps is that they normally crap out at aroud 100,000 miles give or take a few. Always had a highpitch wine first though as a warning sign. i have never had a pump go out on me with only
62,000 miles.

If you want you can replace the inline filter first since it is easiet to get to and cheapest, if that dosnt fix it then you should drop the fuel tank and replace the fuel pump.

I do not know how it is where you live but here autozone,checker,pepboys etc when we go to get a new fuel pump we cannot get just the pump what they will sell us here is the entire assembly has the pump, intank filter and fuel gauge sending unit on it.

so if you are going to replace the pump in the tank you might have to buy the entire assembly.