1996 Chevy Astro Belt Noise

1996 CHEVROLET ASTRO
12,600 MILES • 6 CYL • 2WD • AUTOMATIC
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JAVIERMURRIETA
I have a changed the belt twice. I have changed the belt tension pulley, the idler pulley, the power steering pump, water pump, alternator and air conditioning pump and still have a belt nosie coming from the enigine. Any ideas?
Oct 26, 2008 at 10:51 AM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Remove the belt and start the car, is the noise gone? If yes, spin the A/C pulley, any grinding or roughness means the bearing pressed into the pulley is no good, you can buy a used compresor at a junkyard, and change just the pulley without opening the system. I see you say you changed the a/c comp. Let me know if the noise is gone with belt off, the only other part is the harmonic balance, it has a rubber damper in the middle of the steel parts. You didnt say if you checked the water pump?
Oct 26, 2008 at 11:01 AM
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