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A/C not blowing cool air

Tiny
1997GEO
  • MEMBER
  • 1997 GEO TRACKER
  • 1.6L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 145,000 MILES
Out of the blue, A/C is blowing hot air. The A/C compressor is engaged and turning. The A/C compressor discharge temperature is very hot (normal, I do not have a discharge gauge to measure the pressure). The A/C compressor suction side temperature is slightly above ambient temperature. Normally, the A/C compressor suction side temperature is cool to cold to touch when A/C blower is blowing cold air. For the pass three years I have had to add three to four ounces every two to four months. I added a full four ounce can of FJC stop leak, but that did not help.

Any suggestions would be greatly appreciated.
Thank you,
Ken
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Saturday, November 4th, 2017 AT 12:00 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
It sounds like the system is low once again. I would find the leak and fix it because stop leaks rarely work.

Here is a guide to help you see if the system is low:

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

or

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

Check this out.

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

Here is a guide on AC system not working:

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

Please let us know what happens.

Cheers, Ken
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Sunday, November 5th, 2017 AT 8:13 PM

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