Vehicle is an 08 Tahoe LTZ that has been making a strange noise that I can't pinpoint. I need someone with a good ear that I can take it to. The sound is hard to explain. When I reverse, let off the gas, and coast there is a low rumble sound. More like a vibration of some sort but I can't feel it on the drivers side. I have had a passenger say he could feel it. The vibration/noise/whatever also consistently occurs when I hit ~1400 rpms and then random other times.

The guys at the GM dealership in Cary are useless. I took it to them and they claimed the tires had flat spots. When I then replied the noise sometimes occurs while the vehicle is idling they had no response or solution to offer.

Any reccomendations? Thanks.

5/12/2012 8:18:49 AM

... Anyone really. They aren't very difficult to work on.

I mean they can be a pain in the ass for some things but when your car is one of the longest running models still on the market everyone has worked on one at some point.

5/12/2012 8:25:47 AM

Anyone but the GM trained mechanics at the Hendrick shop in Cary apparently.

5/12/2012 8:27:22 AM

i'mma guess exhaust leak

5/12/2012 9:05:15 AM

^thats very possible.

5/12/2012 12:07:01 PM

transfer case fluid level

5/12/2012 7:44:20 PM

Transfer case would surprise me. It doesn't jump in corners. I'll feel it though after I drive the next time and change the fluid if it feels hot.

5/13/2012 12:10:57 PM

why would it jump in corners? it's not in 4wd. just remove the fill plug and stick your finger in there.

[Edited on May 13, 2012 at 8:08 PM. Reason : -]

5/13/2012 8:07:16 PM