Heater Core Case: Service and Repair

HEATER CORE AND EVAPORATOR CORE HOUSING

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







4. Remove the right side cowl vent screen.







5. Remove the 2 screws and the water shield.







6. Disconnect the vacuum supply hose.
7. Disconnect the heater hoses from the heater core.
8. Disconnect the evaporator outlet spring lock coupling.
- Discard the O-ring seals.







9. Remove the 2 condenser-to-evaporator line bracket bolts.
- To install, tighten to 9 Nm (80 lb-in).

10. Disconnect the evaporator inlet spring lock coupling.
- Discard the O-ring seals.







11. Remove the 3 heater core and evaporator core housing nuts at the dash panel.
- To install, tighten to 7 Nm (62 lb-in).







12. Remove the 2 screws and the heater outlet floor duct.







13. Remove the bolt and nut.
- To install, tighten to 5 Nm (44 lb-in).

14. Remove the heater core and evaporator core housing.
15. To install, reverse the removal procedure.
- Lubricate the coolant hoses with plain water only, if needed.
- Install new O-ring seals.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

16. Fill the engine cooling system.
17. Evacuate, leak test and charge the A/C system.