GMC A/C Compressor Shuts Off

GMC
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NCTARHEELFAN220
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  • 4 POSTS
My a/c compressor has been acting up for a while now. I took it to the local garage, and they told me my tensioner, and idler pulleys needed replaced. (not sure if that would effect operation) Now the compressor seems to kick on for roughly 10 seconds, before shutting off. Is this normal?
May 17, 2006 at 2:56 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
You don't have a bad cpmpressor you are low on refrigerant charge. Have the system charged and you will be fine.
May 17, 2006 at 4:49 AM
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Suggested Repair

Have the A/C system checked and recharged with refrigerant. Short compressor run time is attributed to low refrigerant charge, not a failed compressor.

Conversation Summary

The owner reports a GMC A/C compressor that runs about 10 seconds and then shuts off. A shop had previously recommended replacing the tensioner and idler pulleys. The expert says the compressor is not bad and the system is low on refrigerant, and advises charging the system.

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