Heater Assembly Replacement

HEATER ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE
1. Remove the HVAC module from the vehicle.




2. Remove the heater core cover fasteners and cover.




3. Remove the heater core.




4. Remove the lower HVAC case screws.




5. Unsnap and open the passenger compartment filter door.
6. Remove the lower HVAC case.

INSTALLATION PROCEDURE




1. Make certain that the lower HVAC case is properly positioned and is fully seated on the HVAC module before installing the screws. Be sure to install all lower HVAC case screws.

IMPORTANT: Make certain that the orifice plate is correctly positioned in the HVAC module.




2. Install the lower HVAC case screws.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the screws to 1.8 N.m (15 lb in).

3. Close and secure the passenger compartment filter door.




4. Inspect the foam heater core seal on the lower HVAC case. If damaged, replace using Kent Industries adhesive black foam tape P/N 46480 or equivalent.
5. Install the heater core into the HVAC module.




6. Install the heater core cover and fasteners.

IMPORTANT: Make certain that the heater core cover is properly positioned and is fully seated on the HVAC module before installing the screws. Be sure to install all heater core cover screws.

Tighten
Tighten the screws to 1.8 N.m (15 lb in).




7. Replace the drain tube seal.




8. Replace the front of dash seal.
9. Inspect and replace the HVAC module seals if damaged:
- The defrost duct seal
- The HVAC module to cross car duct seal
- The center air outlet duct seal
- The center floor air outlet duct seal
- The air inlet seal
10. Install the HVAC module in the vehicle.
11. Fill the cooling system. Refer to Draining and Filling Cooling System (2.0L (L61)) Draining and Filling Cooling System (2.0L (LSJ)).