Air conditioning not working

170,000 MILES • 2WD • AUTOMATIC
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RAJAN KUMAR
  • MEMBER
  • 1 POST
My car AC works very well when not needed, i.e. when its colder outside. It literally blows cold, very cold air. In the event when the outside temperature or inside temperature is very high, AC fails to work. It blows warm air.

Checked the Freon pressure and found filled.

Sometimes it starts colder and then in couple of minutes (5 minutes) it starts blowing warm air.

there is no noise or foul smell.
By the end of last summer, I went to the mechanic and they vacuumed everything and filled it again (both at H and L). It was working well for couple of days but again the very same story.

Please advise. I am sure this would have been asked earlier as well so please point me to the right blog to look at.
Jul 3, 2019 at 8:34 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good evening,

What is the high and low side pressures when it is blowing warm air?

Can you hear the actuator move the blend door back and forth when commanding heat and cold?

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

Roy
Jul 3, 2019 at 9:23 AM
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