squealing noise

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Old Mar 16, 2000 | 12:36 PM
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Nancy in PA's Avatar
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Default squealing noise

Hi.
I'm back, I have the 1989 Audi 100 sedan, automatic. Well, about 2 months ago or maybe less I had the timing belt replaced as part of the "maintenance" thing. The car presently has about 58,500 miles on it and I thought it would be a good thing to do. Well, since then there has been an occasional squealing sound coming from the engine upon acceleration and then it's quiet again until you stop and have to accelerate again. It wasn't so loud in the beginning but now it's definitely noticeable. Do you think this is related to the timing belt? I hope it's not something expensive again. Any opinions?

Thanks,
Nancy )
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Old Mar 16, 2000 | 06:57 PM
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First thing; have all the acc. belts checked; PS, alternator, AC, etc. (nt)
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Old Mar 16, 2000 | 07:04 PM
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Default Re: squealing noise

I don't think it's the timing belt because if that were to slip it would cause BIG damage. Sounds like when the shop reassembled everything they didn't tighten the accessory belt enough. I'm not sure if your engine has a tensioner to automatically tighten the belt or if its tightened by hand, either way you’re in for another trip to the shop so they can tighten it for FREE. I hope I helped a little.
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Old Mar 17, 2000 | 09:02 AM
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Default Re: squealing noise

Thanks for the input! I sure hope it's for free; I'd hate for them to say "it will be about 20 hours of labor" etc.... :-o

Nancy )
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Old Mar 17, 2000 | 01:34 PM
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Default Re: squealing noise

One quick check first. Turn off the heating/AC fan and see if the noise goes away.

My fan has started to squeal and will need to be changed soon. When it first started it would only occur after running for a while and while accelerating (I guess the momentum was causing extra stress on the fan shaft). Strange but true.

This is a common Audi problem. Worth a shot to check.

Dwayne
94 S4
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Old Mar 17, 2000 | 01:53 PM
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Default Common problem on 100, tighten alternator belt!

nt
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Old Mar 17, 2000 | 03:25 PM
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Default Re: squealing noise

Ark and psaa are right on the money!!

I just had a similar problem with my '91 90. It's the alternator belt...and it will take the shop about 15 mins to correct(if they're slow)!!
---
Andrew
95 90Q
91 90
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Old Mar 18, 2000 | 05:56 AM
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Default Re: squealing noise

Andrew,
Was this a costly thing? I'll bet they want to "replace my belt". What things should I look for or ask if they say it's "better to replace" than merely tighten? Thanks.
Nancy )
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Old Mar 18, 2000 | 05:58 AM
  #9  
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Default Re: Common problem on 100, tighten alternator belt!

Hi ARK,

Well, the squealing noise stopped yesterday. But, it was COLD outside. Do you think that perhaps the belt gets loose during warmer weather and it contracts with the cold to stop the squealing? Just a shot in the dark. Thanks for your opinions and advice.
Nancy )
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Old Mar 18, 2000 | 07:30 AM
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Default Re: squealing noise

If you haven't replaced the belt for a while it's not a bad idea. If you have recently than you can just tell them you did.
I recently replaced all three of the belts on my cars I think it was $30 for all three belts. So it might cost about $10 for the belt!!!

Either way this should be a cheap(possibly free) and FAST fix!!!
---
Andrew
95 90Q
91 90
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