Silverwolf_pup

I have a 02 coupe, I have noticed a whining noise, it doesn't do it all the time, the sound is coming from the driver rear side, I will shut the car off then start it, the sound is still there, what could it be? Thanks

SG Lou

From just seeing the title I'd say leave her at home and the whining noise will stop while your driving....

Seriously though...I wonder if it could be the fuel pump. Have you actually gotten out of the car and listened for it to try and pin point where it's coming from or it only whines while your driving ?

Silverwolf_pup

I did get out while the engine was still running, the sound is coming from up under the driver side rear, where the tire is

3sACROWD

That is your fuel pump making the noise.
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Silverwolf_pup

What should I do? Can it become a problem?

Crosis

Anything that used to not make a noise but now does can lead to a problem. When it comes to motors, pumps, bearings etc it means wear. Dont get stranded, replace the pump if you confirm its the pump making the noise.

Phanni

Do you have a Mustang owner as a passenger?

Rob 02

It's the fuel pump. Some say that replacing the fuel filter reduces the noise.
There is almost no sound deadening between you and the pump so depending on how sensitive your hearing is to that frequency, you might always hear it.

Silverwolf_pup

Haha that is funny

Silverwolf_pup

How much am I looking at to replace it? Should I take it to a dealership.

Rob 02

^I don't know your skill set. I would say that the fuel filter isn't much harder to change than on any other car. The fuel filter is located on the bottom of the car behind the driver and has the fuel pressure regulator built into it on the later models. You will need a quick disconnect tool commonly used for fuel lines. Definitely wear safety goggles if you do it.

If you tell the dealer it is making a noise, they may charge you for a lot of unnecessary work (costly fuel pumps etc...). I would just go to a mechanic and tell them you want the fuel filter changed as regular preventative maintenance.

If you buy the filter it is about $70. There are some $30 aftermarket ones on amazon. If you go to a mechanic they will probably charge $150-$200 for parts and labor.
If you have a mechanic friend you could have them do it.

bikeriderga

My 2000 coupe used to make the fuel pump whine as well. Never had an issue with it, just annoying.

Are you throwing any codes?

Silverwolf_pup

No it's not saying anything.

Rob 02

Mine was doing the same thing and recently quit. Based on the advice I received on this forum, I purchased a filter/ regulator but haven't installed it yet. Some of the people say that they have had the noise the entire time they owned the car without issues. Others said the noise went away when they replaced the filter.

Bottom line; I am not sure how critical this issue is or if it even is an issue. There is very little sound deadening in Corvetts and you can hear the pump.

Silverwolf_pup

It is quite loud and very annoying, I will take it to a local car shop and see what they say

Ducati Guy

I also have a C5 related whining noise. It usually comes from just outside the car on a sunny weekend day while the car is not moving in the driveway. It sounds kinda like this.........are you going to spend all day cleaning that already clean car?

CactusCat

That kind of story eventually leads to this.

Silverwolf_pup

LOL

Kangarew

My Z51 does the same thing. I think it's normal operation and I never hear it while driving (NPP valves open all the time). My theories are that it's either a fuel pump or the vacuum pump. Since it's so intermittent, it's hard to pin down. Nevertheless, I'm sure it helps explain why C7s are such electricity hogs in storage. So, I keep mine on a battery tender in the winter.

Vetteman Jack

OK, this is the C5 section and this thread is nearly 4 years old.