Alternator belt squeals

Tiny
GENTRYSM
  • MEMBER
  • 1999 MAZDA PROTEGE
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 160,000 MILES
Alternator belt replaced and still squeals when cold. No bearing noise or other indication of binding. Tighten belt and squeal still comes back.
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Thursday, December 4th, 2008 AT 5:56 PM

3 Replies

Tiny
RASMATAZ
  • MEMBER
This happens when the pulley becomes glazed which happens when you get a small amount of oil or coolant on it. Remove the belt and use 200 grit sand paper and scuff up the pulley.

This guide will show you how to remove all belts so you can do the job.

https://www.2carpros.com/diagrams/mazda/protege/1999

Please let us know if you need anything else to get the problem fixed.

Cheers
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Friday, December 5th, 2008 AT 4:51 AM
Tiny
BRIAN719
  • MEMBER
MY 1996 Mazda protege does the exact same thing. When it's cold it squeels really loud. It also does it when I turn my stereo and heater are on at the same time.
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Monday, February 23rd, 2009 AT 11:09 PM
Tiny
CEEKAY7
  • MEMBER
Mine does the same thing when it's cold and damp. Its all fixed once I used the sand paper :) I love this site.
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Monday, April 20th, 2009 AT 11:32 AM

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