: Whine coming out of the Rear end??????



LStasy003
02-21-07, 11:57 AM
I have an 2006 V8 RWD and sometimes when I press the pedal I hear a weird whine or hum out of my back end. Its only when I accelerate and it's not every time. I do have a Corsa exhaust system and am not sure if that has any effect on this noise. Just am wondering if anyone else is experiencing this problem??????

STS2002
02-21-07, 12:38 PM
I had the same problem when I owned my 05 STS. They had to replace the whole rear axle. From what I hear, it's a problem with the rear ends on these cars.

Onalaska
02-21-07, 08:22 PM
My 2005 STS does it between 40 and 50 MPH. The dealer can't hear it and it's not that loud so I just ignore it. It goes away above 50 Mph or at least other road and wind noise cover it up above that speed.

Jesda
02-22-07, 05:21 AM
Do a search. For most folks, getting the diff fluid flushed and replaced with a GM synthetic fluid did the truck.

GM switched from Dana to Getrag when Getrag bought Dana. Unfortunately, Getrag diffs are inferior.

mattrisi
07-27-09, 01:11 PM
my cts whines when hot at 40 mph with light throttle

C&C
07-27-09, 02:35 PM
I have a CPO '06 and had whining problems; the differential was replaced under warranty.

KARL DAHLEN
07-27-09, 02:44 PM
my cts whines when hot at 40 mph with light throttle

this is the sts forum!

trackbait
07-27-09, 03:03 PM
Try removing the wife from the trunk. Whine should dissappear.

dkozloski
07-27-09, 05:54 PM
Try removing the wife from the trunk. Whine should dissappear.
Wrong. That's the cure for howl removal.

KARL DAHLEN
07-27-09, 06:23 PM
MIL in back seat.