Climate control

1991 CHEVROLET CHEYENNE
300,000 MILES • 4.3L
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DANCOLLIER
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  • 1 POST
The arrows lights on the climate control are blinking on and on and the actuator door for defrost and the vents and floor do not work.
Nov 4, 2018 at 5:06 PM
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STRAILER
  • CERTIFIED EXPERT
  • 53,872 POSTS
The lights will blink when one of the actuators is not working. Here is a guide to help you see what you are in for when changing the mode actuator out and the location of the actuator for your truck below:

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

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken
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Nov 6, 2018 at 10:45 AM