Ac works when it wants to

2004 DODGE DAKOTA
287,000 MILES • 4.2L • V6 • 2WD • AUTOMATIC
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REDNEKRODEKYLL
  • MEMBER
  • 1 POST
So I have been having a A/C problem and it is blowing my mind.
One day I can start it up and A/C blows cold and compressor runs and the next day compressor will not kick on . Later that day works fine. Two days later compressor will not kick on. Just trying to show how random it is. when it runs I have checked on gauges 40 low, 300 high, 99 degrees with eighty percent humidity.
Would love some input on this.
Aug 4, 2017 at 7:36 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
Hello,

It sounds like you have a compressor coil going out. When the compressor is not kicking on check the power wire with a test light.

Here is a guide to help you:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

If the compressor is getting power but not engaging it needs to be replaced here is a guide on that as well.

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

Diagram for your car below.

Please let us know what happens, we are interested to see what it is.

Cheers, Ken

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Professional Diagram for 2CarPros Members
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Aug 7, 2017 at 10:55 AM
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