Ok I just bought a 06 SS Supercharged. I test drove it in the city and heard this slight rattle. Once I got it home in the country OH MAN its alot worse then it was on the test drive. Ive heard the rattle on many cars before so not too worried just wondering if its a Cobalt issue. Friend of mine said struts and I dont think so...

 

first 2 things I'd check is the ball joint and tie rod ends.

 

Check control arm bushings and stabilizer links. Fixed my issues..

 

My issue with the knock and rattle up front was control arm bushings.

 

The steering columes make a lot if noise also. Could be that.

 

Install a motor mount, the whole car will sound like a bag full of pennies being held by a man with siezures

 

Thanks all but it was the steering arms it solved 75% of it and the rest was a pinion in the steering wheel column though my guy said it would take forever to fail so Im waiting on that.