For a month now my air control knob will only work on the highest setting. Just an hour ago my car quit blowing air all together and my air control know is VERY HARD to turn. I try turning the heat on to the floor and I hear the motor but nothing happens.

I am not mechanically savy...so if I take this to a mechanic I am sure they can do this. How much would it cost to replace these parts? Also could the knob be stripped also? If so can they just replace the knob? I am not mechanically savy...so if I take this to a mechanic I am sure they can do this. How much would it cost to replace these parts? Also could the knob be stripped also? If so can they just replace the knob?

he knob is cheap you can get it at the gm dealer parts department just pull it off and push the new one on around $20.00. If you need the motor it will run 200 to 300 to fix it.depending if you need the resistor to. he knob is cheap you can get it at the gm dealer parts department just pull it off and push the new one on around $20.00. If you need the motor it will run 200 to 300 to fix it.depending if you need the resistor to.