What causes Ac not to come on or come on and blow like it’s on 1.

Asked by Firemancharlie Mar 29, 2020 at 04:07 PM about the 2004 GMC Yukon SLE

Question type: Maintenance & Repair

I have a 2004 yukon. The ac does not come
on and then it will blow like it’s on 1. Is the
control module or what.

1 Answer

2,270

Does your truck have auto temperature control? If so, then the problem is often the blower motor controller module. If it's not auto temp control, then the problem is usually a bad blower motor resistor.

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