My 89 Buick Century has a terrible squealing sound which worsens as it warms up. What is this?

1989 BUICK CENTURY
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MMMKAT
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When I start the car, it is very slight, but as it warms up, the squealing gets worse and louder.
Nov 29, 2011 at 11:11 AM
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JACOBANDNICKOLAS
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It sounds like a belt. Try this. When you hear it, take a small amount of water and pour it on the belt while the engine is running. Does the noise change?
Nov 29, 2011 at 11:14 AM
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MMMKAT
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Yes the noise subsided, so does it just need oiled or something? How do I fix it?
Nov 29, 2011 at 11:33 AM
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MMMKAT
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Yes the noise subsided, so does it just need oiled or something? How do I fix it?

Nov 29, 2011 at 11:52 AM
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TWSHIPLEY28
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check the water pump that may be your problem
Nov 29, 2011 at 4:04 PM
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JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 POSTS
Okay, that tells me one of three things. Either the belt is loose due to a bad tensionier, the belt needs replaced, or one of the belt driven accessories is locking up and causing the noise. Check belt condition and tension first. IF they are good, remove the belt and check each belt driven accessories to see if any are hard to turn or making noise.

Let me know what you find.
Nov 29, 2011 at 5:07 PM
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