One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on GMC 1500 Pickup
Average mileage: 158,000 (151,000–165,000)
6 people reported this problem
2 people shared problem details
1996 GMC 1500 Pickup165,000Visitor
replace the control board and the blend door.motor
1998 GMC 1500 Pickup151,000Visitor
The air is hot and i cannot change the air delivery. can anyone help?
I have repalced both rear brake cylinders, springs on one rear wheel,both front clynders, repla...
The air conditioning compressor may develop an abnormal noise and require replacement. We recom...
The power door lock actuators may become slow to operate or stop working completely and require...
I have replaced the raditor, leaky, and the thermostat, and it still will not get warm. NO leak...