1994 Toyota Corolla A/C blowing hot air during summer

1994 TOYOTA COROLLA
238,000 MILES • 4 CYL • 2WD • AUTOMATIC
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DHANDAPANI
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  • 2 POSTS
In normal weather the AC works fine. But when the outside temperature goes beyond 100 degrees then the AC starts blowing hot air. I live in Dallas and can you please the area I need to focus.
Jul 1, 2009 at 4:41 PM
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BUDDYCRAIGG
  • CERTIFIED EXPERT
  • 2,262 POSTS
it could be simply low on freon and the expansion valve is freezing up.

Do you have a set of AC gauges to take pressure readings?
Nov 19, 2018 at 5:25 PM
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DHANDAPANI
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  • 2 POSTS
No. I will purchase that and I will check the pressure readings.
Nov 19, 2018 at 5:25 PM
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BUDDYCRAIGG
  • CERTIFIED EXPERT
  • 2,262 POSTS
take your time and look around, you should be able to find a cheap set for about 40 bucks.

That's what I paid for my first set and they lasted 3 summers and countless cars before i replaced them.

so they should be just fine for your occasional use.
Nov 19, 2018 at 5:25 PM