2014 GMC Sierra not cooling well

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Re: 2014 GMC Sierra not cooling well

Postby Cusser » Thu Jul 09, 2020 2:01 pm

My 2005 Yukon had hot air coming out of the vents, and turning off ignition and restarting the engine temporarily fixed it. I had a bad actuator so hot air was getting mixed in, replaced the actuator to fix correctly.

You may be able to get by, by turning the actuator manually and unplugging its harness.

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