Heater Core and Evaporator Core Housing

HEATER CORE AND EVAPORATOR CORE HOUSING







Removal and Installation

NOTE:
- If an evaporator core leak is suspected, the evaporator core must be vacuum leak tested before it is removed from the vehicle.
- Lubricate the coolant hoses with plain water only if needed.

1. Recover the refrigerant.
2. Drain the engine coolant.
3. Remove the instrument panel. Service and Repair
4. Detach the wiring harness bracket and position the harness aside.







5. Remove the heater tube bracket nut.







6. Remove the dash panel A/C line bracket nut.
- To install, tighten to 11 Nm (8 lb-ft).







7. Disconnect the 2 heater hose clamps at the heater core.
8. Disconnect the evaporator inlet fitting.
- Discard the O-ring seals.

9. Disconnect the evaporator outlet fitting.
- Discard the O-ring seals.

10. Disconnect the 2 vacuum connectors.







11. Detach the grommet and push the vacuum lines into the passenger compartment.







12. Remove the 4 heater core and evaporator core housing nuts.
- To install, tighten to 9 Nm (80 lb-in).

13. Disconnect the ground terminal bolt.
14. Remove the heater core and evaporator core housing.
15. To install, reverse the removal procedure.
- Install new O-ring seals.
- Lubricate the refrigerant system with the correct amount of clean PAG oil.

16. Fill and the engine cooling system.
17. Evacuate, leak test and charge the refrigerant system.