GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD - RHD 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Air Temperature Door Replacement

Removal Procedure
  1. Recover the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the heater/vent module. Refer to Heater/Vent Module Replacement .
  3. Remove screws to split the HVAC module in half.
  4. Remove the air temperature actuator.
  5. Remove the mode actuator.

    6. Object Number: 691824 Size: SH
  6. Remove the air temperature door (1) from the lower module half.

Installation Procedure

    Object Number: 691824 Size: SH
  1. Install the air temperature door (1) to the lower module half.
  2. Install the mode actuator
  3. Install the air temperature actuator.
  4. Install the screws to seal the HVAC module halves.

    5. Tighten
    Tighten the screws to 4.5 N·m (40 lb in).

  5. Install the heater/vent module. Refer to Heater/Vent Module Replacement .
  6. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .