Heater Core Case: Service and Repair

HEATER CORE AND EVAPORATOR CORE HOUSING

Part 1:

Part 2:

Removal and Installation
1. Recover the refrigerant.
2. Drain the cooling system.
3. Remove the instrument panel. Refer to: Body and Frame, Interior Moulding/Trim, Dashboard/Instrument Panel, Service and Repair, Service and Repair

4. Release the 3 heater core hose clamps and disconnect the heater hoses from the heater core.
5. Remove the TXV manifold bolt.
- To install, tighten to 21 Nm (15 lb-ft).

6. Remove the PCM bracket bolt.
7. Detach the wire harness from the heater core and evaporator core housing.
8. Remove the heater core and evaporator core housing bracket bolt.
- To install, tighten to 7 Nm (62 lb-in).

9. Remove the 3 heater core and evaporator core housing nuts.
10. Remove the heater core and evaporator core housing.
11. Remove the TXV manifold O-rings.
12. To install, reverse the removal procedure.
- Install new O-ring seals.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

13. Fill the engine cooling system.
14. Evacuate, leak test and charge the refrigerant system.