19th Nov 2011, 17:37
The rumbling sound or knock that some of these cars have is due to the coupler in the supercharger.
19th Dec 2011, 11:47
It is your supercharger coupler. I just pulled mine into my garage and replaced it. When you accelerate heavily, it causes your pulley to move back and forth, and put unnecessary wear on it. If you don't know how they work or how they come apart, take it to a shop, it will save you money and time.
17th May 2011, 13:55
Check your supercharger coupler... It's inside your supercharger nose.. easy fix, save yourself a bundle.