I just got back from the Toyota dealership where I had some warranty work done.

2007 TC
29,000 Miles
No Mods

The Issue - When the AC was turned on I would hear a clunk noise from the compressor and a constant faint rattle while pulling off until the car was warmed up.

The Fix - They replaced the Tensioner that was attached to the belt that ran around the AC compressor. Tensioner ASSY Part 16620-28012

The technician said that mine wore out way to early and that part of the 07 engine redesign was the tensioner for the 07 Camry engine because the prior Camry engine had a tensioner that leaked because it was hydraulically controlled. He could not explain why mine had failed and was puzzled because this issue was supposed to be fixed.

2nd Issue - Loud Rattle from under car when engine was cold.

The Fix - Technician found a loose screw in one of the shields and tightened it.

 

I'm having the same issue with my car now and i brought it to my local dealer and they said that mine is messed up because i have aftermarket pulleys and belts. Could that have caused it to go bad? It was fine before. I have an 07 with 35K miles.

 

yea on all the camry's that come into the shot 9 times outta 10 that tensioner is leaking and it cost about 200-300 to fix use that warentty up lol

 

Only thing that sucks is that I have aftermarket pulleys and belt so they might try and get me for that. I'm hoping cause I work for them they might help me out

 

it seems that i may have the same problem but my tc is 05
since i changed the pulleys i hear this rattle too
Let me know if changing the tensioner and belt helped in your case