Heater Core Case: Service and Repair

HEATER BOX SHIELD

Heater Box Heat Shield:

Remove or Disconnect
1. Fasteners that retain heat shield to heater box assembly.

Heater Box Heat Shield:

Install or Connect
1. Fasteners that retain heat shield to heater box assembly.

Tighten
- Bolts/Screws to 2.2 N.m (25 lb in).


HEATER ASSEMBLY

Heater Hoses:

A/C Evaporator Tube Assembly:

Evaporator Core:

Evaporator Core Assembly:

Heater Assembly:

Remove or Disconnect
1. Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2. Heater hoses. Refer to Heater Hoses.
3. Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
4. Air inlet assembly. Refer to Air Inlet Assembly Replacement.
5. Vacuum lines.

Important
- Clearly label vacuum line connections.

6. Heater assembly studs inside engine bay.
7. Blower motor resistor. Refer to Blower Motor Resistor.
8. Stud inside heater core housing.
- Stud is revealed by removing the blower motor resistor.
9. Rear case screws.
10. Heater assembly.
11. Seals.

Heater Hoses:

A/C Evaporator Tube Assembly:

Evaporator Core:

Evaporator Core Assembly:

Heater Assembly:

Install or Connect
1. Seals.
2. Heater assembly.
3. Rear case screws.
4. Stud inside heater core housing.

Tighten
- Stud to 1.9 N.m (17 lb in).
5. Blower motor resistor. Refer to Blower Motor Resistor.
6. Heater assembly studs inside engine bay.

Tighten
- Studs to 1.9 N.m (17 lb in).

7. Vacuum lines.
8. Air inlet assembly. Refer to Air Inlet Assembly Replacement.
9. Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
10. Heater hoses. Refer to Heater Hoses.
11. Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
- Check the system for leaks.