Started recently, I am getting a rattle under the hood at idle in gear only, it goes away with any rpm increase sounds like heavy metal loose? I crawled under truck the other day and it sounds to be coming from LH motor mount area, not sure though


Before I take it to the dealer I would like to have some direction.


Thanks


Max

I am getting a buzz sound at idle also http://www.dieselplace.com/forum/smileys/smiley5.gif

Betcha it's the belt tensioner. Look at it at idle if it's shaking badly, then that's probably it.