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olskoolchevy · 04-29-2010, 08:15 AM

I've got an 07 GMC Sierra and every now and then the A/C will just start blowing hot, not warm, hot. But if you turn the temp adjust dial from cold all the way to hot and back to cold, it will start blowing cold again. Sounds like something with the dial. I had problems with the #1 speed on the blower dial on my 07 chevy and it turned out to be a resistor for that speed. Hopefully this is something similar and easy to fix. Thanks for any help yall can give me.

04-29-2010, 08:15 AM	#1
olskoolchevy Registered User Join Date: Jul 2005 Location: Pasadena, TX Posts: 162	A/C problem on 07 GMC I've got an 07 GMC Sierra and every now and then the A/C will just start blowing hot, not warm, hot. But if you turn the temp adjust dial from cold all the way to hot and back to cold, it will start blowing cold again. Sounds like something with the dial. I had problems with the #1 speed on the blower dial on my 07 chevy and it turned out to be a resistor for that speed. Hopefully this is something similar and easy to fix. Thanks for any help yall can give me.