Pulley Noise is Killing me! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-30-2007, 05:28 PM   #1
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Default Pulley Noise is Killing me!

I searched 3800pro, ClubGP and here before I posted.

There is something squeeling in the engine bay. It started the first winter I had the Bonne, the squeel. I replaced the belt first because it was old and needed replacing anyway.....still there. I got my ear as close as safely possible and it sounded like it was coming from down low....like it may be the PS pump. I get a Morad special PS pump and install it.....STILL THERE.

I figured....100K on the car I'll replace the WP now and see if that does it. So again I got the Morad special and a gasket from AZ this afternoon. I thought before I started I would take the belt off and see if the squeel goes away because I haven't tried this yet...I know....should have done this FIRST. SQUEEL STILL THERE! I am getting very frustrated since it HAS to be the balancer, but get this. I put the belt back on and was gonna call it a day after it appeared to be the balancer and not the WP.

I decided to take a video of the balancer squeeling with the belt off for archive purposes. I started the car with the belt off.....NO SQUEEL! Belt back on and it squeels, take it off and nothing. I pulled if off and put it back on about 5 times and could not get it to squeel with the belt off again.

What does everyone think? My GTP is down waiting for parts and I cant do anything to the Bonne until the GTP is on the road so I have a backup car if I cant finish the Bonne in tome for some reason.

I have a GTP balancer on hand but would it even work?

Please advise.

Vinnie
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Old 09-30-2007, 10:41 PM   #2
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Read this thread and see if it helps.
http://www.bonnevilleclub.com/forum/...ic.php?t=86250
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Old 09-30-2007, 10:45 PM   #3
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No...thats not it. I can hear it the entire time I'm driving and when parked after a drive in park.

I know i can use the L67 balancer because the GP GT guys that do top end swaps use that balancer.
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Old 09-30-2007, 10:49 PM   #4
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I have something very similar on my 1995. I thought for sure it was coming from the alt, i switched out the alts and the sound went away for about 25 minutes and then came back. I would discribe it as a screech though. It has puzzled me and it drives me crazy
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Old 09-30-2007, 11:15 PM   #5
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There are differences between the GP balancers and Bonneville balancers from year to year.

Harofreak00 swapped a GTP motor into his 2000 Bonneville and it wouldn't run with the GTP balancer. The interrupter rings are slightly different.
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Old 10-01-2007, 09:06 AM   #6
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If you are trying to locate a noise, a long screwdriver cuppoed to your ear or a stethescope ($15 at Sears) are invaluable tools.
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Old 10-01-2007, 03:50 PM   #7
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Quote:
Originally Posted by BillBoost37
If you are trying to locate a noise, a long screwdriver cuppoed to your ear or a stethescope ($15 at Sears) are invaluable tools.
I have a long screwdrive thast I use for this stuff but how do you put a screwdriver against a turning pulley?
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Old 10-01-2007, 04:29 PM   #8
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Quote:
Originally Posted by VinnieGTP
Quote:
Originally Posted by BillBoost37
If you are trying to locate a noise, a long screwdriver cuppoed to your ear or a stethescope ($15 at Sears) are invaluable tools.
I have a long screwdrive thast I use for this stuff but how do you put a screwdriver against a turning pulley?
you can put it up to the bolt that secures the pulley
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Old 10-02-2007, 03:45 PM   #9
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Or to the bracket that holds the pulley. Either way as long as you are close to the pulley there should be a good indication of which one is bad.
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Old 10-02-2007, 05:43 PM   #10
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I guess I need to pull the wheel and fender liner and get to it......
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