Ok guys, I'm sure you've probably answered this before. When my AC is running and I pull to a stop light and sit, a loud buzzing/rattling comes from under the hood. What the heck is that, cause it is embarassing to have someone look over cause it's louder than my stereo. Any help and a description on how to fix would be cool. Thanks.

 

When mine did that it was a loose power steering bracket.

 

Same here!!