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I have a 2006 M6 with 33,000 miles. I have been told that my Harmonic Balancer is fine.
Here is the hypothetical part of my question. If I could get a new one installed for free, should I do it? Is it better to leave well enough alone or is it good insurance to put a brand new one in because my current one is probably on borrowed time?
There's a chance it may never fail or it may fail tomorrow. There's also the chance the new one will fail if they put the same one on it. I'd leave it alone till it needs it cause it may never need it. Mine was replaced at 47K.
Any word if GM is going to carry this crap part through the c7 as well? They've been willing to stick with it for the C5 and the C6. I understand the updated C6 part is the same .
since you stated you can't do the ATI one for free, only the GM oem one, i say leave it alone if it's absolutely fine. Reason being, the new one can fail at 500, 1k, 2k miles or last a while. The one on there may last a long time also. If you replace it and it fails in 3k miles a year and a half from now, then it is wasted money to replace it again....
Its only a small percentage of dampers that fail (though I agree, it should not happen at all)
If its not broken I would not "fix it" until it becomes a problem !!