1994 Oldsmobile 88 Pulley turning intermittently

Tiny
ELTABOR
  • MEMBER
  • 1994 OLDSMOBILE 88
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
The pulley on my compressor turns intermittently all the time the engine is running, with or without A/C on. Shouldn't the pulley turn freely to keep from wearing out the belt? If so what is my problem?
Thank You
Ed
Saturday, March 27th, 2010 AT 6:14 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Ed:
The ac compressor runs in cycles. When this happens, does it appear as if the belt is slipping, does make noise? Also, does the AC work when you turn it on?
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Wednesday, April 14th, 2010 AT 12:45 PM
Tiny
ELTABOR
  • MEMBER
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Yes to all three
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Wednesday, April 14th, 2010 AT 5:11 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
It sounds like one of two things. Either the belt is loose due to a weak tensionier, or the compressor is locking up. Have the tensionier tested first.

Let me know what you find.

Joe
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Wednesday, April 14th, 2010 AT 10:03 PM

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