Heater Air Damper Door

REMOVAL
1. Remove A/C evaporator housing.
2. Remove foam seals from evaporator core tubes.
3. Remove four retaining screws and A/C electronic blend door actuator from A/C evaporator housing.





4. Remove metal cover, disengage spring from heater core cover and remove spring from lever.





5. NOTE: Do not attempt to bend any part of the lever; it is brittle and will break.

Gently depress locking ramp and remove lever from secondary A/C air temperature control door end.
6. Rotate primary A/C air temperature control door shaft down, then swing metal link and remove from pin.





7. Disconnect vacuum hose from heater air damper door vacuum control motor.
8. Remove three retaining screws and metal cover from A/C evaporator housing.
9. Remove screw retaining heater damper door vacuum control motor to A/C evaporator housing.





10. NOTE: Do not attempt to bend any part of the pivot shaft; it is brittle and will break.

Rotate vacuum control motor and disengage arm from pivot shaft.
11. Remove retaining screws from around flange joint of A/C evaporator housing.
12. With side cutters (or equivalent), cut all snap loops around flange joint of A/C evaporator housing.
13. Remove upper evaporator housing case from lower evaporator case housing.





14. Gently depress locking ramp and remove pivot shaft from heater air damper door.

INSTALLATION
1. Position heater air damper door between halves of A/C evaporator housing and install retaining screws around flange joint of A/C evaporator housing.
2. Install pivot shaft on heater air damper door end.
3. NOTE: Do not attempt to bend any part of the pivot shaft; it is brittle and will break.

Engage arm of vacuum control motor onto pivot shaft and rotate vacuum control motor to its mounting location.
4. Install vacuum control motor and metal cover to A/C evaporator housing with three retaining screws.
5. Reconnect vacuum hose to vacuum control motor.
6. Install metal link over pin on primary A/C air temperature control door shaft.
7. Install secondary A/C air temperature control door lever on metal link.
8. Install secondary A/C air temperature control door lever to secondary A/C air temperature control door end.
9. Engage spring to heater core cover and secondary A/C air temperature control door lever.
10. Install A/C electronic blend door actuator to A/C evaporator housing with four retaining screws.
11. Install foam seals over evaporator tubes.
12. Install A/C evaporator housing assembly.