Having problems with your 2007 Cadillac CTS 3.6L ?
Harmonic Balancer issue
\015 I thought my noise was coming from the s/c on my daughter's 1993 Bonneville SSE. We isolated the accessories and found that it wasn't coming from the s/c. Further investigation found we could rotate the harmonic balancer until it clanked and stopped against something. Then we rotated it the opposite direction until it again hit something making a clunk ing sound. Upon starting I believe we are hearing the balancer slip until it hits that something and upon shutting it off it continues to spin until it hits the stop again and makes a clanking sound. Anybody have a link to a site explaing the R&R procedure? Also with the s/c belt off, I could rock the s/c pulley about 1/2 inch or so back and forth before engaging the s/c shaft. Is this nomal and if not what is the solution to fix it ? thanks Rich\015
Sounds like your balancer may have come apart. it shouldn't move at all. to move it you have to make the crankshft turn. i had this happen on a truck once. it made some strange noises, then it started vibrating pretty bad. i shut it off, took me a while to figure out what it was. most of them are actually 2 piece and have a key slot, (a grove cut in both pieces that a piece of metal sits in to keep them turning at the same time). it sounds to me like you need to replace it. it can take some serious effort & tools to replace.
Repair Help & Product Troubleshooting for 2007 Cadillac CTS 3.6L
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