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.
Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Chevrolet 2500 Pickup
Average mileage: 11,000 (11,000–11,000)
13 people reported this problem
1993 Chevrolet 2500 Pickup 11,000 mi, Visitor
When started on warm day its run a few miles and stumbles and stalls and when it cool out its hard starting and then stalls can't leave driveway.