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A/C clutch stays engaged

Tiny
WRECKDIVER230
  • MEMBER
  • 2003 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Does not cycle, does shut off when fuse is pulled, Freon is okay, using single hose type gauge.
Wednesday, July 17th, 2019 AT 11:22 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Is the air cool in the car?

I need to see both pressures to see if the system is working correctly. You can rent a set of gauges at a parts store.

https://www.2carpros.com/articles/how-a-car-air-conditioner-works

The system may not cycle depending on ambient air temperature.

Roy
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Wednesday, July 17th, 2019 AT 12:36 PM
Tiny
WRECKDIVER230
  • MEMBER
  • 3 POSTS
I just ordered a new set of gauges, will check back when they arrive. Ambient air was 113 degrees.
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Wednesday, July 17th, 2019 AT 12:38 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, sounds like a plan.

Roy
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Wednesday, July 17th, 2019 AT 12:40 PM
Tiny
WRECKDIVER230
  • MEMBER
  • 3 POSTS
Okay, got new set of gauges. Here are results: ambient temperature 102 degrees
engine off pressures low 100,
high 90

engine on low 90
high 100
clutch runs constantly, will shut of with switch or pulling fuse,
i believe its a bad compressor.
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Sunday, July 21st, 2019 AT 1:38 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are correct. The pressures did not budge at all.

Replace the compressor, dryer and expansion valve.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Roy
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Sunday, July 21st, 2019 AT 1:57 PM

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