Defroster constantly blowing hot air

1992 CADILLAC STS
244,000 MILES • 4.9L • V8 • 2WD • AUTOMATIC
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UNDISBUTED
  • MEMBER
  • 1 POST
Even when i turn defroster to off It is still blowing hot air.
Jul 30, 2019 at 12:30 PM
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SCGRANTURISMO
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 4,897 POSTS
Hello,

This is probably a problem with your vehicle's blend door actuator. The actuators are little plastic electric motors that operate the doors that open to let air through the ducts. When your actuator, through normal wear and tear brakes, it is going to stay in the position it was in when it brakes. Here is a link below for you to go to:

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Please go through this guide and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

Jul 30, 2019 at 11:50 PM
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