Metallic rattle when going into gear and vibrations at idle
 

Hey guys... I have an 04 AT with 55k miles and the main problem I'm having is that when I'm parked and put my car in drive, I hear this metal on metal rattle that is EXTREMELY annoying and have been trying to figure out how to fix it. I'm also getting vibrations while idling in D with my foot on the brake. I had it looked at by the dealer, and they say the passenger side engine mount is bad, but when I looked at it, there was no obvious sign of it being bad, nor oil leaking. I'm about to replace it anyways hoping to fix the problem, but the metallic rattle is the most annoying. It shakes the whole car from the backend (since the tranny and engine are connected directly). I've noticed though if when I put it in drive and quickly give it a little gas to raise the rpms, I can avoid the metallic rattle and vibrations ever so slightly, which leads me to believe my problem is related to either the engine mount, a tranny mount, or a possible heatshield, but I'm not certain.

Any help would be GREATLY APPRECIATED. Thanks.

motor mount! now help me!

there isnt a transmission mount, its all connected back in the rear. (im 99.9% sure)

Good to know. Thanks! About to order the mount now