Blower fan does not work properly

129,000 MILES • 3.5L • 6 CYL • 2WD • MANUAL
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SUNSETLAKE
  • MEMBER
  • 1 POST
Blower motor will not work right. It would run but not like it should. On high it runs like it is on low so I replaced the resister and now it will not work at all.
Oct 4, 2018 at 5:06 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi and thanks for using 2CarPros.com.

If the motor was turning slower than it should be, it may be bad. Have you checked to see if there is power to the blower motor since you replaced the resister? Also, have you confirmed the motor has a good ground and nothing is blocking the fan?

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Listed below is a link for diagnosing blower motor issues. If you page down, it discusses checking the circuit and the motor. Additionally, I have included links which show how to use a volt meter, test light, and how to test wiring.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

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

Let me know if this helps or if you have other questions.

Take care,
Joe
Oct 6, 2018 at 1:16 PM
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