As the title say, I notice a vibration/noise when I am sitting in idol. Its even worse when the A/C is on. It gets frustrating, if I rev then engine it takes the vibration away.

It bothers me so much that I turn my A/C off if I am stopped at a light.

Any one have any ideas? I was thinking it could be the engine mounts I plan to inspect them this weekend when I have some time.

Car is an 0 TL-S, I bought it used last summer and this has been there the whole time.

 

What are your RPM's at idle? (As opposed to, Billy Idol )

 

How many miles are on the car? What year is it? Maybe you need a valve adjustment or maybe you need a motor mount.

 

damn typo's

74k miles and its a 2007

 

I have a lil of this as well.. Let me know if you come to a conclusion. Subbed for fix!

 

I have a similar issue.

But I did a valve adj. and no fix which brings me to the Serpentine belt, I notice that one of the tensioner pulleys wiggles compared to the rest that just rotates in perfectly straight order.

I will check the mounts also this weekend.

 

I have the same issue. When I turn the car on sometimes it makes the sound, when I hit bumps or pot holes, or even on idle depending how the car is angled, my town is mostly hills. When I rev the sound leaves. After reading a few threads I thought it was the mount. Had the car lifted and checked it out with my dad who's a mechanic and its a lower control arm bushing on the passenger side. Luckily It's covered in the warranty so I save a few bucks. Not sure if its the same but worth checking maybe?

 

Check your motor mounts!

 

I just fixed this issue with my TSX. It was definitely the motor mounts. Be sure to use the factory replacements - I tried cheaper replacements, but it just made the vibration worse. Replaced with factory mounts - now idles like a new car.

 

same problem here.
For me colder weather seemed to aggravate it further.
Replacing motor mounts solved the problem.