i have a S10 Blazer 4.3. The problem i am having is ac and heat isnt working at all. when i mess around with the vent switch i do hear noises coming from behind the switch. But i dont have defrost or anything. Air and heat doesn't come from the vents what so ever. If someone can help me then i would appreciate the help!
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1992 Chevrolet S10 Blazer
Question: A/C and Heating not working?
Answer #1goodguy October 11, 2012, 05:22Master
you either have a bad switch or a seiZed blower motor or a blower resistor
Answer #2Greg's Orange Auto (8467 Answers) , Orange, CA - (714) 361-9355globalhelper October 11, 2012, 06:24Master
do you have defrost mode? if so you may have a vac leak to controller or poss blower motor issue