A/C will not engage

Tiny
CDOTSON_1
  • MEMBER
  • 2004 GMC ENVOY
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
It worked fine last year. The Freon has full charge. I jumped the relay and the clutch kicked in, but will not engage otherwise.
Saturday, June 20th, 2020 AT 12:07 PM

1 Reply

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

How do you know it is fully charged?

Do you have gauges to give me the high and low side readings?

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

I attached a diagram for you to view. Do you have a voltmeter to do some checks?

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Roy

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Saturday, June 20th, 2020 AT 12:18 PM

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