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  #1  
Old 08-10-2022, 01:27 PM
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Air conditioning AC not working

Scenario:
- Accelerated at a high rate of speed the other day with the AC on.
- Afterwhich, the AC would not work. No cold air.

Testing:
- Checked fuses. Checked OK.
- Compressor clutch does not engage under any circumstance, even when provided direct battery power.
- Low and High pressures read 100 approx 100 psi
- When removing harness from pressure switch, the aux fan turns on as expected. Aux fan appears to work ok.

Would this indicate a bad compressor? Bad clutch?
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  #2  
Old 08-10-2022, 02:54 PM
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If the clutch doesn't engage when powered then that is the problem. You might try giving the clutch plate a nudge with a stick or prybar handle with the A/C on and running.
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  #3  
Old 08-10-2022, 05:26 PM
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Unplug it and check resistance. 0 ohms = toast clutch coil. You can swap most clutches and pulleys. I'm not sure if anyone here has done a clutch swap.
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  #4  
Old 08-10-2022, 05:52 PM
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Ordered a clutch. Going to try it this weekend.
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  #5  
Old 05-01-2023, 04:16 PM
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how did the clutch repair work for the A/C Compressor?
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I swear, my cars are like a girlfriend.
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BUT at the end of the day, she loves it when I am inside her.

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  #6  
Old 05-02-2023, 10:35 AM
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Quote:
Originally Posted by Clockwork View Post
how did the clutch repair work for the A/C Compressor?
Worked great! Clutch was indeed fried.
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  #7  
Old 05-02-2023, 10:56 AM
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just got my compressor and valve replaced, glad it's working!
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  #8  
Old 05-04-2023, 07:06 PM
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Quote:
Originally Posted by racebmwm3 View Post
Worked great! Clutch was indeed fried.
Nice job!
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  #9  
Old 05-11-2023, 07:10 PM
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I have the same issue with my AC clutch.


Can the clutch be fixed by cleaning it or adding WD40 if it is sticking?


On my car i have the same issue and although changing the clutch is easier than changing the compressor.

So just wanted to know if it is a common issue with the clutch where it sticks due to corrosion etc?


Thanks
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  #10  
Old 05-11-2023, 10:15 PM
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Either the clutch coil is shorted/open or the clutch is worn (less likely with a variable displacement compressor because it doesn't cut in and out as much) so not a repair item and will need replacement.
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