Durango 2WD V8-4.7L VIN N (2001)
Air Door Actuator / Motor: Service and Repair
Blend Door Actuator Replacement
REMOVAL
The single zone heating and air conditioning system is equipped with a single blend door actuator. The dual zone system has two blend door actuators,
one for the driver side blend air door and one for the passenger side blend air door. The same service procedures can be used for each of these
actuators.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY
STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT
AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM
CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG
DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Disconnect and isolate the battery negative cable.
2. Remove the silencer from beneath the driver side end of the instrument panel.
3. Remove the three screws that secure the heater core shield to the left end of the HVAC distribution housing.
4. Pull the heater core shield rearward far enough to disengage the two location tabs that position the front of the shield to the receptacles in the two
lower finger formations of the heater/air conditioner housing near the dash panel.
5. Remove the heater core shield from the distribution housing.
6. Disconnect the HVAC wire harness connector for the blend door actuator from the actuator connector receptacle.
7. Remove the two screws that secure the blend door actuator to the distribution housing.
8. Remove the blend door actuator from the distribution housing.
INSTALLATION
1. Position the blend door actuator onto the heater/air conditioner housing. If necessary, rotate the actuator slightly to align the splines on the actuator
output shaft with those in the blend air door linkage.
2. Install and tighten the two screws that secure the blend door actuator to the distribution housing. Tighten the screws to 2 Nm (17 in. lbs.).
3. Reconnect the HVAC wire harness connector for the blend door actuator to the actuator connector receptacle.
4. Position the heater core shield onto the distribution housing. Be certain that the two location tabs on the front of the shield are engaged in the
receptacles in the two lower finger formations of the evaporator housing near the dash panel.
5. Install and tighten the three screws that secure the heater core shield to the left end of the heater/air conditioner housing. Tighten the screws to 2
Nm (17 in. lbs.).
6. Reinstall the silencer under the driver side end of the instrument panel.
7. Reconnect the battery negative cable.
8. The DRM lll is used to perform the heater-A/C control calibration procedure.
