2006 GMC YUKON
127,000 MILES
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JOHNNYMACK
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  • 3 POSTS
I replaced the resistor to front heat and air , now the rear is just blowing cold air , do I need to have it re calibrated ? It isn't showing a code either , could the rear have gone back to its default setting or something else possibly bad also?
Jan 15, 2013 at 10:25 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Was it the blower motor resister that was replaced? If so, that only operates fan speed. Let me know.
Jan 15, 2013 at 11:21 PM
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JOHNNYMACK
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  • 3 POSTS
Yes it was front blower motor resistor
Jan 17, 2013 at 3:27 AM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
That shouldn't have affected rear temp.
Jan 17, 2013 at 3:46 AM
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JOHNNYMACK
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  • 3 POSTS
Kinda coincidental that rear heat quit working all of the sudden after replacing front resistor! So what could it possibly be ?
Jan 17, 2013 at 3:54 AM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Is the fan blowing cold air? Have you checked the heater core for the rear? Is it getting hot>?
Jan 17, 2013 at 4:12 AM