Heater Core: Service and Repair

HEATER CORE REPLACEMENT

TOOLS REQUIRED
J 37097-A Hose Clamp Remover/Installer

REMOVAL PROCEDURE

IMPORTANT: In order to access the heater core care must be taken when moving the heater core cover. The cover may crack, especially when cold.




1. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
2. Position the J 38185 in order to remove the heater hose clamps.




3. Remove the heater hoses from the heater core.
4. Remove the console assembly.
5. Remove the auxiliary air distribution duct.




6. Remove the heater core heat shied cover from the HVAC module.
7. Remove the air filter access cover.
8. Remove the heater core cover screws.
9. Lower and move the cover to obtain enough access to remove the healer core.




10. Remove the retaining screws (1) and straps from the heater core.
11. Remove the heater core.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.




1. Install the heater core into the HVAC module and attach the retaining straps and screws (1).

Tighten
Tighten the screws to 1.5 N.m (18 lb in).




2. Install the heater core cover and the attaching screws.

Tighten
Tighten the screws to 1.4 N.m (12 lb in).

3. Install the air filter access cover.

Tighten
Tighten the screws to 1.4 N.m (12 lb in).

4. Install the heater core heat shield cover.
5. Install the auxiliary air distribution duct.
6. Install the console assembly.




7. Install the heater hoses using the J 38185.
8. Fill the cooling system. Draining and Filling Cooling System in Cooling System.