How to diagnose a bad harmonic balancer? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-19-2009, 05:30 PM   #1
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Default How to diagnose a bad harmonic balancer?

Hi I have my front passenger side tire off as i am changing the cam sensor and figured i could check the balancer as i have an awfull rattle that go'* away on load but sounds god awful at idle, so far i have changed tension pully'sx2 as well as the sc coupler,thanks to this awesome forum!! but the rattle is still there and I have to figure this out so any tips on what to look for would be appreciated.
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Old 05-20-2009, 08:22 AM   #2
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Looking at the face of the balancer, do you see any breaks in the rubber, cracks etc? If you had been running for long like that...it would be making a racket that nearly sounds like a bad motor.
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