GM Repair Problems? Ask GM Repair Expert Now.
Hello, do you have the manual HVAC or full automatic climate control?
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Ok, there is a standing recall for blower running all the time on the "manual system". on the auto? there is not. Likely what has failed is the blower control module. On auto system its a module and NOT a resistor, When these module fail? they will cause symptoms just as you describe. It is not that uncommon on GM vehicles to have this happen. I have attached a couple links showing location etc, up under passenger side of dash. I have to lean to this as most common we see, very rare instances the control panel is at fault but that is rare"
its #8 and the second pic ture I sent shows it being removed, Its up under passenger side dash, You remove the sound panel under dash , you will see the blower motor, the module sits along side of the blower and has a plug to it, Held in by 2 screws. hers the picture again