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Blower motor does not work

Tiny
CJCALLAGHAN
  • MEMBER
  • 2003 CADILLAC SLS
  • 4.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 155,000 MILES
The blower motor no longer comes on for any HVAC setting (heat, defrost, air conditioning). How best to diagnose the problem? As my car is old, modern technicians seem unsure all the time. Can you advise, please?
Monday, June 3rd, 2019 AT 6:33 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

Here is a tutorial showing how to test/replace a defective blower motor:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Hope this helps and thanks for using 2CarPros.
Danny-
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Tuesday, June 4th, 2019 AT 5:48 PM

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