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1992 Chevy Silverado Serpentine belt won't stay on

Tiny
GGW5911
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 115,000 MILES
I drive a chevy 1500 4x4. Recently the belt started squealing very loudly and slipped off one of the pulleys, since the belt was in bad condition I decided to replace it. When I got the new belt on the tension looked to be about right only about 1/4 to 1/2 of an inch of deflection. But when I started the truck up is started squealing and the belt slipped off again. Does this mean I need a new belt tensioner?
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Friday, March 28th, 2008 AT 5:01 PM

5 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
This meaqns something is probably seized. With the belt off, physically turn every single pulley and look for the one that is rough to spin or is wobbling. Get back to us
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Wednesday, February 24th, 2021 AT 1:03 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Probably, also check all pulleys, any out of alignment with the rest? If there is an idler change that too.
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Wednesday, February 24th, 2021 AT 1:03 PM
Tiny
GGW5911
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  • 4 POSTS
The AC compressor pulley was siezed. Is there a way for me to fix this without having to get a new compressor installed.
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Wednesday, February 24th, 2021 AT 1:03 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
If you can locate one at a junkyard, it's held on by a 5/16th bolt, and a snap ring. If the compressor is good! Can be the bearing in the pulley.
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Wednesday, February 24th, 2021 AT 1:03 PM
Tiny
GGW5911
  • MEMBER
  • 4 POSTS
Thanks alot guys. I think its the bearing in the pulley because I can get it to spin if I hold it in just the right position.
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Wednesday, February 24th, 2021 AT 1:03 PM

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