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2005 Belt Squeal

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Old Aug 29, 2011 | 03:05 PM
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Default 2005 Belt Squeal

Another belt squeal story...

I have a 2005 with the most annoying belt squeal occurring at hard acceleration when the auto trans shifts form 1st to 2nd. Had it to the dealer who replaced the harmonic balancer w/the "new" re-engineered version, replaced the tensioner, the power steering bracket and replaced the drive belt. Still sqeals, the dealer said they called GM tech line and was basically told there was nothing more they could do. Any ideas?
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Old Aug 29, 2011 | 03:19 PM
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Wire brush and use contact cleaner on all the pulley guides.

Would be great if you could listen for exactly which one is squeaking.

Antifreeze residue is notorious for inducing a squeak.

P.S. = Nice comment by GM Techline (or dealer interpretation) comment. Yes, one could replace every single pulley and the belt all at one time or until squeak is gone.
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Old Aug 29, 2011 | 05:01 PM
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Originally Posted by Hawk-C6
Another belt squeal story...

I have a 2005 with the most annoying belt squeal occurring at hard acceleration when the auto trans shifts form 1st to 2nd. Had it to the dealer who replaced the harmonic balancer w/the "new" re-engineered version, replaced the tensioner, the power steering bracket and replaced the drive belt. Still sqeals, the dealer said they called GM tech line and was basically told there was nothing more they could do. Any ideas?
Does your crank pulley have any play or wobble when the car is running? If you can't see it with the belt on, remove it and run the car for a short time to see if any sort of wobble comes to light.
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Old Aug 30, 2011 | 11:15 AM
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Thank's for your help. I've checked the pulley's and they all seem absolutely straight, w/no wobble. I'll try the wire brush/contact cleaner.
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