2001 Chevrolet S10 A/C Clutch Won't Engage

CHEVROLET
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MOUNTAINDAN
  • MEMBER
  • 6 POSTS
I Have a 2001 S10 quad cab with a 4.3l. The A/C clutch will not ingage. I can manually operate the relay and the clutch operates. Will a bad pressure switch allow it to operate manually or is that after the relay? I have not checked the freon level.
Jul 10, 2006 at 12:16 PM
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MIKEYBDMAN
  • ✓Experienced Mechanic
  • 623 POSTS
If your freon is too low, your clutch will never engage to run the compressor. I would have the system evacualted and service back to the proper level of freon first. If then it doesnt run, lets talk switches and wiring......
Jul 13, 2006 at 10:04 AM
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Suggested Repair

Have the A/C system evacuated and recharged to the proper refrigerant level first. If the clutch still does not engage, then check the pressure switches and wiring.

Conversation Summary

The owner of a 2001 Chevrolet S10 with a 4.3L says the A/C clutch will not engage, although manually operating the relay makes the clutch work. The refrigerant level has not been checked. The expert explains that low refrigerant will prevent clutch engagement and recommends evacuating and servicing the system to the proper level before diagnosing switches and wiring.

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