Air conditioner not working

Tiny
DEMOUCHET230
  • MEMBER
  • 2000 CADILLAC DEVILLE
  • V8
  • 4WD
  • AUTOMATIC
  • 89,000 MILES
I put two cans of freon in my car and the next day it was blowing back warm and I put that leak detector in and I still couldn't find a leak. Please help
Monday, February 23rd, 2009 AT 4:49 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
This is common when there is a leak in the evaporator which is in the HVAC housing.

However this is not an easy replacement so let's confirm it first. Here are a couple guides that will help with this.

First is a guide on how to find a leak. Next if you still don't find it then we need to pull it down into a vacuum just to confirm it is not holding which shows we are just missing the leak.

https://www.2carpros.com/articles/air-conditioner-leak-detection

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

However, if it holds a vacuum then you are most likely not getting the compressor to turn on which indicates a different issue so we need to find what the pressure is and go from there.

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

I attached a chart below to find out what the pressure is and we need to know what they are and then we can determine next steps.

Please let us know if you have other questions.

Thanks
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Sunday, August 1st, 2021 AT 8:23 PM

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