A/C not blowing cold enough air?

1999 CHEVROLET TAHOE
97,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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HUEVO
  • MEMBER
  • 1 POST
So, I changed out high side pressure sensor. Recharged the system to spec. The compressor doesn’t shut off or takes a while to cycle. Inside the blowing temperature is 51 - 72F. When it gets to 51, I’ve been driving for about 30 minutes. I’ve driven my brothers truck his output is 41F at the vent. So, what I’m I missing? All actuators are working. Or the fresh air is still open. Where is the recirculation door? Maybe that is still open?
Oct 10, 2022 at 2:00 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,479 POSTS
Sure, can I ask what the pressures are for the high and low side? Also, did you add oil when you did the repair? Please let me know, in the meantime here are two guides that can help:

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

and

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

Please go over these guides and report back.

Oct 11, 2022 at 3:02 AM
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