Whistle noise

[jameym00]

Any of you all hear a high pitch whistle noise when giving the tahoe gas. I can hear it, which sounds like its on the other side of the fire wall. i thought it was something on the exterior of the vehicle blowing in the wind but it does it when i am parked. its only a 2007 with 7k on it, and i hate going back to the dealer and have to get a rental for a day so they can tell me its nothing. any suggestions?

 

[Splitting 8s]

I have been experiencing something similar for the last week or so. It happens when I hit the gas and when idling. Comes and goes. Took it into the dealer yesterday but they can't replicate the noise. We will see if it continues.

 

[Mad Dawg]

I've heard something like you are describing, rarely comes and goes just as quickly, of course this is when I do not have the stereo on when I actually hear it. Does not seem to have any adverse effect on the performance of the truck so I won't worry about it at the present. If it gets loader and happens on a regular basis, I will have the dealer look at it. It could be whining from the pulleys, power steering pump or something else. Just some thoughts...

 

[Zed 71]

I had the same sound about two months after I bought the truck. The dealer could not replicate it. But the sound went away during the winter and has not come back. I am wondering if it was a new belt that was too tight or snug on the pulley, and now the belt has either loosened or worn an edge away.

 

[aaron72]

I have the whistle as well.

Here is the post with the GM bulletin. No fix currently available.

http://www.chevroletforum.com/m_31194/mpage_2/key_/tm.htm

 

[Tcwhite]

I had one when I first got my yukon and it happened to be the serpentine belt. I got it replaced and no more whistle!