kozman

I have a whinning noise coming from the rear , below the seats. The noise has been there for about a year but basically I ignored it, I suspect it's the fuel pump. I notice the noise is more proniunced when the tank is 1/4 or below, is this normal or should I expect to replace the pump soon?. The car seems to run ok, could it just be a dirty fuel filter that is causing the pump to be strained and make the whinning noise?. Any suggestions are welcomed.

Imthebriman

iTrader: (1)

I have the same thing happening. Someone told me that it is common in GMs because of somevibration from the pump to the bottom of the tank... I am not completely sure though... If anyone knows anything about this I would also be interested in more information.

Adrians91Z28

i have a whining noise to ..

but mine only whines when the car is under load .. sounds like a wheel bearing or something ..

but the fuel pump is an idea ... havent thought about that

kozman

Update,
I stopped by my local shop the other day, I asked my guy to take a listen-to my dismay,he confirmed it was the fuel pump. Just to double check, he took off the gas cap and I could hear it howling. He suggested I try a new fuel filter first before I go for the fuel pump.

I asked if this was usual for 3rg Gen's to have a howling fuel pump, he mentioned he heard it could be common.

My questions is, has anyone else experienced a howling fuel pump and still be able to operate it without problems, is this normal or should I be safe and replace it. let me know.

Adrians91Z28

ill check tommorow if mine makes noise ..

what did u do, just take off the cap and you can hear a weird noise? ..

i have a whining noise while going down the road .. but i only get it when the motor is under load ..

do you get the same thing, or is it all the time?

3.8TransAM

Plugged or inop fuel tank vent valve or canister purge valve can also cause vacuum and/or pressure to develop and contribute to increased noise.

kozman

I would notice the howling both ways, either driving or at idle.As I mentioned earlier, it is usually when my tank is 1/4 or below and when i removed the cap it was more pronounced. My car is garaged for winter and happened to take it out last weekend for a spin, unfortunately NY got dumped with 6 inches of snow the other day therefore I have not taken for a ride this weekend.

I will have my car checked out in a few weeks to get ready for the spring cruising, I will have my guy check the fuel pressure, I guess that will be a good starting point to check if my pump is shot.Hope this helps...