I researched the problem and i thought it might have been the heat shield being that its a common problem, but i decided to take it into a shop and they said it may be the struts. the problem is when i drive i hear a knocking, rumbling, or rattling sound when i'm on the gas. It did not make the sound when revving the engine in park, and when i was coming home i was listening for the sound while going over speed bumps and didnt hear it at all. it seems to happen only when im driving on roadways, or when i'm going over a bumpy roads while not on the break. the noise is coming from the front, i believe it is the right side. Just got it 2 weeks ago, only got a after market 1year power train warranty. 146k miles.

HELP PLEASE !!