Diesel Data: Automotive Repair

HVAC System - Automatic

REMOVAL PROCEDURE




1. Remove the HVAC module. Service and Repair
2. Remove all of the outer HVAC module seals.
3. Remove the air inlet housing.
4. Unclip the heater/defrost valve vacuum actuator from the HVAC module.
Remove the heater/defrost valve vacuum actuator.
5. Remove the HVAC module case upper screws.
6. Separate the HVAC module case (1).




7. Remove the HVAC module seal (2) from the lower module case (1).




8. Remove the evaporator core.




9. Remove and discard the evaporator core lower seals.




10. Remove and discard the evaporator core upper seal.




11. Remove and discard the evaporator core side seal.




12. Remove the water core titer.

INSTALLATION PROCEDURE




1. Install the water core filter.




2. Install a new side seal to the evaporator core.




3. Install a new upper seal to the evaporator core.




4. Install two new lower seals to the evaporator core.




5. Install the HVAC module seal (2) to the lower module case (1).




6. Install the evaporator core into the HVAC module lower case.




7. Align the guide (1) and attach the upper and lower HVAC module case.

NOTE: Refer to Fastener Notice in Service Precautions.

8. Install the HVAC module upper screws.

Tighten
Tighten the HVAC module upper screws to 1.5 N.m (13 lb in).

9. Install the heater/defrost valve vacuum actuator to the HVAC module.
10. Install the air inlet housing.

Tighten
Tighten the air inlet housing screws to 1.5 N.m (13 lb in).

11. Install the HVAC module.