Hey, my 06 cts with 129xxx kms makes a very weird whining noise on and off for 55 seconds on a cold start. I cant figure out what it is and its a horrible noise! Heres a link for the video https://db.tt/k5UlZRJF and it also makes a supercharger kinda sound from the belt when I rev it. (Belt to tight?)
PLEASE HELP!