I have 2003 gmc envoy xl my front ac control does not work it make cool air but i does'nt blow it out.
Need to check to see if the blower motor is running.If it is,but not threw the vents,most likely a vent door actuator motor.The actuator motor in this case would be bad,it is hard to get to,unless you are mechanically inclined,You can do it your self.If the blower motor is bad,just replace it.Check fuses first,and the blower relay.If I can help,let me know.
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My 2003 GMC Envoy AC in the front was not working. I took though it was the blower,but it end up being the Resistor Resistance some how water got in there and damage the Resistor.Its behind the blower moter.
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