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Old 05-01-2012, 08:45 PM   #1
00_buck
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Default Squeaky Motor...

Hi, I've had this annoying squeaking from my engine lately when I start it up. It lasts until the engine is passed 180*. I've changed belts and a few pulleys but it's still squeaking. When I spray that belt dressing on it, it made it 10x worse and now you can hear it from far away! Any ideas on how to narrow this down? I took the belt off and moved all the pulleys but none of them squeak moving by hand.
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Old 05-01-2012, 09:01 PM   #2
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Weak tensioner?
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Old 05-01-2012, 11:01 PM   #3
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Originally Posted by BLKSTANGER View Post
Weak tensioner?
It's a Thump rrr racing tensioner so I doubt it though it's always possible. I actually wouldn't mind if it was since it has a lifetime warranty. How would I test this?
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Old 05-02-2012, 03:45 AM   #4
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Only thing you could really do is get another one and put it on

only thing I could think of that you might could try is while it's running, take and put a little more tension on the belt by hand on the tensioner and see if it goes away, or slightly loosen the belt. Just need to be very careful
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Old 05-02-2012, 11:07 AM   #5
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No, no and no. Do not even attempt to add tension by hand to a running engine. First off, consider the amount of pressure a tensioner is applying even when weak. The 5-10 lbs you will add to it with a lack of leverage will tell you nothing. Let alone the blatant risk of losing fingers!
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Old 05-02-2012, 11:53 AM   #6
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I say its the serpentine belt.
Every year Im replacing one on my GT that causes squeaking.( thank god for a 3 year warranty on belt)

Autozone know what Im there for every year (BTW its a Dayco belt)

Also a safe way to test belts and pully squeak is to spray them with water.
If noise goes away then you found your problem.


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Old 05-02-2012, 12:46 PM   #7
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I would say that this kind of noise is most commonly the belt it's self.
Then next would be the tensioner.
Then would be the alternator front bearing.
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Old 05-02-2012, 01:32 PM   #8
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Im not sure how true this is, but i picked up a new dayco belt and a dayco rep told me their belts are made of a kevlar compound now and if for anyreason they get antifreeze or oil on them there gonna squeek forever afterwards.
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Old 05-02-2012, 04:34 PM   #9
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Quote:
Originally Posted by Repzard View Post
I say its the serpentine belt.
Every year Im replacing one on my GT that causes squeaking.( thank god for a 3 year warranty on belt)

Autozone know what Im there for every year (BTW its a Dayco belt)

Also a safe way to test belts and pully squeak is to spray them with water.
If noise goes away then you found your problem.


GL
I can replace the belt and it will go away for about a week or two (since the belt isn't fully stretched yet), after that it squeals again.
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Old 05-02-2012, 05:23 PM   #10
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Quote:
Originally Posted by 00_buck View Post
I can replace the belt and it will go away for about a week or two (since the belt isn't fully stretched yet), after that it squeals again.
sounds like it's definitely the tensioner then
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Old 05-02-2012, 05:23 PM
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