harmonic balancer/damper
Intermediate
Joined: Sep 2007
Posts: 33
Likes: 2
I wish I had it replaced long ago when I heard a faint sound (like a bearing was rattling) at idle. It became worse over time just lasting until the car reached operating temp in the morning. I thought the serpentine belt may have worn and had it replaced last month. The noise actually went away for a few weeks and then the noise came back only louder at higher rpm's and didn't go away. I have 94K on mine but I have heard of them letting go much sooner. If you detect the "rattle" or notice the wobble have it replaced.
Cruising
Joined: Dec 2010
Posts: 12
Likes: 0
From: Williamsburg Virginia
Cruising
Joined: Dec 2010
Posts: 12
Likes: 0
From: Williamsburg Virginia
I had the same bearing rattle in my 2005. turned out to be the alternator bearing, very common in chevy pick-ups I work on every day. I took apart and regreased the bearings and the squeel and rattle is gone. one quick way to tell is to disconnect the alternator plug when you hear it, and see if the noise disappears.
