Air conditioning not working?

2001 CHEVROLET SUBURBAN
275,000 MILES • 4.9L • V8 • 4WD • AUTOMATIC
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KEVIN FRY
  • MEMBER
  • 1 POST
My compressor is running fine it has the proper charge of 134A. lines cold and its condensation. But I'm either getting vent air out of dash or a blend door is half open to the heater core. My blend door went out that controls where the air comes out defrost floor or panel I replaced that one. the one above the passenger floor i took off and turned it but made no difference am i missing somethin is there another blend door that regulates temp. Help please thanks.
Jun 19, 2021 at 1:21 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,286 POSTS
Yes, there is a mode blend door actuator which need to be replaced. Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Professional Diagram for 2CarPros Members
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Jun 20, 2021 at 5:42 AM
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