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2005 Chevy Cavalier Air Conditioner making a clicking sound

Tiny
JFPROFIT
  • MEMBER
  • 2005 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • MANUAL
  • 88,000 MILES
The air conditioner in our 2005 Chevy Cavalier has started making a clicking sound. It seems to work fine but makes the sound whether the a/c is on or not. The only way we have been able to get the noise to stop is to switch it from recycled air to the regular fan or vice versa. Lately, it has taken longer for the clicking sound to stop. Any ideas on what could be causing this?
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Tuesday, September 15th, 2009 AT 8:23 PM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
The clicking is the clutch engaging. It will do this when AC is commanded or when in defrost mode.

If it occurs other than described above, I would suspect a bad relay or AC switch.
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Wednesday, September 16th, 2009 AT 8:32 AM
Tiny
JFPROFIT
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  • 2 POSTS
Would this be the case if the sound continues when the a/c is turned off?
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Wednesday, September 16th, 2009 AT 9:14 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Yes, most likely a switch, possibly a relay.
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Thursday, September 17th, 2009 AT 9:03 AM

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