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A/C clutch not working properly

Tiny
JEFF BURNS
  • MEMBER
  • 2006 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 408,000 MILES
The A/C works when it's turned on after starting up in the morning. I can go 5-10 miles with ice cold air coming out of the vents. Then I feel the temperature slowly warming up. I noticed the clutch was not spinning while the A/C was on.
I have stuck a large pry bar down to the clutch and it got stuck to the clutch because of the coil is energized. I then used the pry bar to spin the clutch. It started to slowly spin and engage the compressor. I recently replaced the clutch plate and the pulley, but not the coil. I still have the same problem. I'm thinking the clutch coil is bad.
Am I right?
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Friday, May 20th, 2022 AT 6:15 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More than likely you are correct. The way to confirm this is to confirm the voltage is at the compressor.

If you are engaging the clutch with a pry bar and it is working, then the coil is most likely the issue.

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

Based on all this info I would agree with you and be replacing the clutch and coil, so I am attaching this process below.

Thanks
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Friday, May 20th, 2022 AT 10:19 AM

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