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1999 Ford Crown Victoria Possible AC Noise

Tiny
TOMCS
  • MEMBER
  • 1999 FORD CROWN VICTORIA
  • 127,000 MILES
I have a wining noise coming from under the hood. It does it for a short time and quits. It also quits when I turn the AC off. A new AC clutch and bearing has recently been installed. The AC cools as it should. Does this sound like a bad compressor.
Sunday, September 8th, 2013 AT 11:20 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I doubt it it may be a bad belt/tensioner as those shold be replaced around 60k
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Sunday, September 8th, 2013 AT 4:25 PM
Tiny
TOMCS
  • MEMBER
  • 7 POSTS
I had the belt tension pulley and idler pulleys changed not long ago. The noise is defiantly coming from the A when it engages.
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Monday, September 9th, 2013 AT 1:38 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Then it may be the compressor but that doesn't mean it's bad. It depends on the temp outside an what you are hearing is the compressing the gas and suction on initial start up.I t might be a tad low on Freon but like I said nothing to worry about.
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Monday, September 9th, 2013 AT 5:59 PM
Tiny
TOMCS
  • MEMBER
  • 7 POSTS
It turned out to be the bolt that holds the AC clutch in place came out. Replaced the bolt and all is well.
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Tuesday, September 10th, 2013 AT 11:21 AM

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