Heater Core: Service and Repair

Heater Core (80.20.29)

Removal
1. Raise and support the vehicle.

WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

2. Remove the cover and disconnect the battery ground cable.
3. Remove the heater and evaporator core housing.
4. Remove the RH side footwell heater duct.
- Remove the 2 screws.







5. Remove the heater core.
- Remove the coolant pipe clamp.
- Remove the screw.
- Remove the heater core retaining bracket.
- Remove the screw.
- Position the RH footwell duct mounting bracket aside for access.
- Loosen the screw.







6. Remove the heater core, inlet and outlet pipes.
- Release the 2 clamps.
- Remove and discard both O-ring seals.

NOTE:
- Do not disassemble further if the component is removed for access only.
- Note the fitted position.







Installation
1. Install the heater core, inlet and outlet pipes.
- Install new O-ring seals.
- Install the clamps and tighten the screws.

NOTE: Lubricate the seals with coolant.

2. Install the heater core.
- Secure the heater core retaining bracket.
- Install the screw.
- Install the coolant pipe clamp.
- Install the screw.
- Align the footwell duct mounting bracket and tighten the screw.
3. Install the RH side footwell heater duct.
- Install the screws.
4. Install the heater and evaporator core housing.
5. Connect the battery ground cable and install the cover.