Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Chevrolet 1500 Pickup

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

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Average mileage: 110,668 (13,200–164,000)
6 model years affected: 1990, 1991, 1992, 1993, more1994, 1995
12 people reported this problem
5 people shared problem details
heating door is not opening.Where is the door located
11 people like thisFlag inappropiate
heater will not blow hot air and everything is working but hot air is non existant
7 people like thisFlag inappropiate
When moving selector knob from its current position to any other position, mode door makes a clicking sound as it attempts to move. Haven't replaced it yet as I still need to check if the door is stuck. Even after freeing a stuck, still a good idea to replace motor.
2 people like thisFlag inappropiate
Took off old actuator and it did not any power so i filped the door around and the heat worked, so I tryed to find a actuator at parts house but never got the right one, i am still looking for the right one .
2 people like thisFlag inappropiate
The blower fan don't work but have a new fan on it
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