Whining noise

[gaboy54]

My 97 Silverado, 5.7L, has a whining noise that seems to be coming from under the truck, just behind the cab. I am guessing that it is the fuel pump?? Is there any wait to tell other than removing the pump? I have read that I have to remove the bed to get to the fuel pump.

[jocat54]

Some whining was considered normal for some of these fuel pumps? Pulling the bed is the easiest way (my opinion only) to access the pump.

[Tall]

Yeah; a little whine is normal. But a loud one is an issue. When your truck is running; take the fuel cap off and see if the whine is louder through the filler neck.

I have dropped the tank; and lifted the bed. If you can get a couple guys over; life the bed. 6 bolt; two ground wires; and a wire harness and your done!

Dropping the tank is a beast in it self. =)

[mrbee]

I have done it twice and found it easier to lift the bed rather than to remove it.

[MyTOY]

when u turn the key to run (not start), u should hear the pump start up.
they are loud. Mine competes with my exhaust. You can have the pressure checked if you're that concerned. Keep your tank 1/4 full for cooling of the
pump. Search this forum & you'll get more info than u want

[derekbitt]

i have replaced a couple of these before and i would say if the truck is running fine (it starts fine, runs/accelerates fine.) leave it alone. let it whine untill the the truck hard starts. if you really must replace it , get it through gmpartsdirect . research prices and youll find out why
good luck