Having problems with your 2002 Chevrolet TrailBlazer ?
AC issues My battery died and after replacing it the a/c will only blow through the passenger and rear dash vents. The driver's side vents are blowing hot air but not very hard. Cold air is also coming out of the defrost vents but not the floor vents. I took the #36 fuse out of the rear fuse box and waited 3 mins before putting it back and started my car. I let the car run for 2 mins before turning on the AC. When I turned the car on there were knocking noises coming from the dash and after
The problem is either an actuator or the door associated with it. Sometimes the gear strips, especially when the system goes thru a recalibrate after power has been removed and reapplied. Below is a diagram of the locations of the actuators.
Repair Help & Product Troubleshooting for 2002 Chevrolet TrailBlazer
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