High whining noise on my 97 C5

[hthsbd]

Can anyone give me any thoughts on this high whining sound I hear on my 1997 C5 when I stop at a red light or stop sign? It doesn't do it all the time. But it is like a high whine that goes up and down. The auto tranny is shifting fine and all my temps are good. Maybe this is a normal sound that 97 C5's make since I haven't had mine but a few months. Any input you can make would be appreciated!

Thanks,,,hthsbd

 

[bucwheat]

Sounds like Power steering or trans for sure,lift the hood when the noise is going on and listen to the Power steer pump.

 

[killain]

Odd noises

Does it change frequency or sound with the changing speed ? or if you start out from a dead stop does the noise change as you manually shift greas ? Does it change sound if you turn the A/C on and off ? and lastly, have you ever changed the serpentine belt and or the belt tensioner ? Just a couple of ideas.

 

[hthsbd]

Whining sound

The sound seems to go away when I start to move. I have replaced the belts, by the way. I will try turning the a/c on and see what that does. I will also raise the hood and check the power steering pump too. Thanks for the suggestions!

 

[DannyM]

Could be the fuel pump. they are known to be noisy on early C5s. I can hear a faint, high pitched whine sometimes in my 98 coming from behind the seats. You can change it out or, like me, learn to live with it.

 

[gmjunkie]

I'd check for a cracked rubber hose right here between the PCV and Throttle Body, Sucking air they'll whine and go away under acceleration like that sometimes!~!!

 

[hthsbd]

Think the fuel pump may be it!

I am definately leaning toward the fuel pump answer. I have had several others tell me the same thing about early C5's having the problem with the niosy fuel pump. Think I will do like you and some others and just turn the radio up! Thanks so much for the input!

 

[VETTEX2]

High whining noise on my 97 C5

jeez , not one person asked her name....