A/C not blowing cold air?

2004 CADILLAC ESCALADE
200,164 MILES
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MERKUM901
  • MEMBER
  • 12 POSTS
If my HVAC system is topped off what else could cause my A/C not to blow cold air in the front and back. Don't know if or how to top off rear refrigerant if it's an option.
May 20, 2023 at 8:24 AM
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JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

This can be the result of a few different things. Most commonly, it is the result of low refrigerant (Freon).

Take a look at this link. It explains step-by-step how to charge the system. Additionally, the second link covers the causes of an AC system not working.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

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

Let me know if that helps. If it doesn't, I need to know if you hear the AC compressor engage when you first turn the system on. You will likely hear a click from under the hood. Also, check to see if you can change the incoming temp from heat to no heat. That will tell me if there is an issue with the blend air door,

Take care,

Joe

May 20, 2023 at 10:13 PM
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