Blend door actuator

2004 GMC YUKON
151,000 MILES
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JGAJRAMOS
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  • 1 POST
If the sir conditioner is not blowing cold air all the time and sometimes only on passenger side which blend door actuator should I fix first?
Jun 22, 2016 at 9:28 AM
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STRAILER
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Hello,

Here is a great guide on which actuator does what

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

Let me know how it goes

Best, Ken
Jun 22, 2016 at 9:36 AM
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WRENCHTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 20,761 POSTS
On a GM product that symptom is very often incorrect refrigerant charge. I would advise having it evacuated and recharged with the specific weight of refrigerant.

You can easily rule out blend doors by simply pinching off one of the heater hoses for testing.
Jun 22, 2016 at 12:02 PM