: 2011 cts v coupe start up noise

05-25-11, 03:42 PM
I recently purchased a new 2011 CTS V Coupe which I love. When car first starts in the morning, there is a low rattling and squeaky noise. It goes away after a minute or two. Has anyone else experienced this.

Otherwise the car is a joy.:bigroll:

05-25-11, 03:44 PM
Supercharger isolator rattle.

05-25-11, 06:20 PM
Supercharger isolator rattle.

+1. Switch to a solid one and problem solved, they are 70 bucks.

05-25-11, 06:37 PM
Never heard my isolator make a, "squeaky", noise, just a low rattle. The squeak noise might be a belt slip, or something like that ...