# 2012 GMC Canyon - HVAC issues

**URL:** <https://community.cartalk.com/t/2012-gmc-canyon-hvac-issues/177810>\
**Category:** Maintenance/Repairs\
**Tags:** gmc\
**Created:** [July 2, 2021, 4:30pm UTC](https://community.cartalk.com/t/2012-gmc-canyon-hvac-issues/177810 "2021-07-02T16:30:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ReneEdenJuneau](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@ReneEdenJuneau](https://community.cartalk.com/u/ReneEdenJuneau)\
**Post date:** [July 2, 2021, 4:30pm UTC](https://community.cartalk.com/t/2012-gmc-canyon-hvac-issues/177810/1 "2021-07-02T16:30:34Z")

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A/C and Heat quiets working every now and then.

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [July 2, 2021, 10:36pm UTC](https://community.cartalk.com/t/2012-gmc-canyon-hvac-issues/177810/2 "2021-07-02T22:36:00Z")

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Look under the passenger side of the dash behind the glove box. You will see the blower motor. Right next to it is the blower motor resistor ( connector with 4 wires going in; orange, light blue, tan, and yellow). Pull the connector off and check the contacts to see if they are burnt or loose.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 2, 2021, 11:03pm UTC](https://community.cartalk.com/t/2012-gmc-canyon-hvac-issues/177810/3 "2021-07-02T23:03:09Z")

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The next time it stops blowing, pullover and with the fan set to high speed, reach under the passenger side of the dash, and with the handle of a screwdriver rap on the blower motor.

If the blower starts working, replace the blower motor.

Tester