Blet/pulleys squeaking PITA!
Thread Starter
Pro
Joined: Mar 2010
Posts: 589
Likes: 0
From: Navarre Florida
Blet/pulleys squeaking PITA!
A week ago or so noticed chirping sound coming from belt/pulley area, took it to a shop, afte the mechanic diagnosed it, I ended up replacing both belts, serpentine belt tensioner and idler pulley. Drove home a few miles did not hear anything. Next couple of days the chirping sound reoccurred. I can only hear it when the car is moving and I put my foot on the accelerator, while running in park it does not seem to do it at all. Now what is really strange is when I park the car after driving it and shut it off I can still hear the squeaking going on for another 5-7 sec, slowly fading until it stops. I tried manually spinning radiator fan but it seemed fine. This squeaking sound is driving me CRAZY
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
the only thing that should be spinning to the point where you could here a 'chirp' would be your cooling fans on the front of the radiator...i mean if it's making the noise with the engine shut off and you're sure it's the same noise
Racer
Joined: Oct 2000
Posts: 483
Likes: 3
From: Woodstock Ga
Well, I don't know about this possible chirping w/ the engine just being cut off, but if it really is something w/ the accessory drive system like normal, and If it wasn't gatorbacks you put on it, I would go ahead and just spend the $50 to swap to gatorbacks now. Keep the current new ones in the trunk for backups or something.
I went through this whole mess, changed the belts first (with Dayco premium belts), no difference. Changed the idler/tensioner pulleys on both drives, chirping briefly quit for about a week but came back the same as ever. About out of ideas I went ahead and switched to gatorbacks, which advertise they specifically can cut belt noise, and the sound has been gone for 6+ months.
But if you're sure you hear the same noise when the engine is off and nothing is spinning save maybe the fans then I'm not sure what you can check there. Guess you could disable the fans briefly and see what you get.
I went through this whole mess, changed the belts first (with Dayco premium belts), no difference. Changed the idler/tensioner pulleys on both drives, chirping briefly quit for about a week but came back the same as ever. About out of ideas I went ahead and switched to gatorbacks, which advertise they specifically can cut belt noise, and the sound has been gone for 6+ months.
But if you're sure you hear the same noise when the engine is off and nothing is spinning save maybe the fans then I'm not sure what you can check there. Guess you could disable the fans briefly and see what you get.
Last edited by GM Fan; Sep 4, 2010 at 04:37 PM.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Are you sure it is coming from the engine compartment? Could it be the heater/ac blower fan? Might try going to accessory mode on your ign switch and see if you hear the noise.
Melting Slicks
Joined: Sep 2005
Posts: 2,568
Likes: 264
From: Near Charlotte NC
If it's not a bad belt or pulley,the belt just might be dirty/greasy.Try putting a spoonful of powder cleanser on the underside of the belt and fire it up.
It's it just grease/dirt,the dry powder will clean it off and stop the bird chirp.
\db2
Carolina
It's it just grease/dirt,the dry powder will clean it off and stop the bird chirp.
\db2
Carolina
Le Mans Master
Joined: Jun 2009
Posts: 6,528
Likes: 752
From: South Dakota
If yours is making the noise after the engine stops, it can't be the belt or pulleys etc. because the are all stopped.
When I had a problem with a chirping noise it turned out to be the harmonic balancer wobbling and only when the engine was running, but yours is a different symptom.
