Car Problem Reports

Chevrolet Silverado 2500 Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

Chevrolet Silverado 2500 Problem
19 Reports
Me Too

Model Years Affected: 1999, 2000, 2001, 2002, 2003, 2004

Average Mileage: 134,876 mi (97,500 mi - 184,000 mi)


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.

  •  Rookie

    The problem is that the air only blos out the defrost and will not change over to any other outlets. I am having trouble finding the delivery door actuator for this, but have foound the temperature control one and it is working fine, so far. Any help on finding this thing would be appreciated

    Flag This
  • Visitor, , 109,000 mi

    Upon starting the truck, the mode door seems to cycle from floor to dash to defrost and stays at defrost regardless of switch position. Started IMMEDIATELY after replacing blower moron resistor. Have tried pulling the fuse for various lengths of time, turning off the ac when it gets to the dash position. All to no avail.

    Flag This
  • Visitor, , 105,000 mi

    air temp varies regardless of slide position.

    Flag This
  • Visitor, , 162,500 mi

    the problem is heating on ac mode because the actuator are't work

    Flag This
  • Visitor, , 184,000 mi

    Heat will not switch from windshield to front

    Flag This
  • Visitor, , 111,260 mi

    Inlet air actuator has failed. Cold air on feet all the time. $1000 + to repair. May trade it off for this price.

    Flag This
Ask a Question