HVAC System - Automatic
REMOVAL PROCEDURETOOLS REQUIRED
^ J 38042 Dual O-ring Joint Separator
^ J 37097-A MUBEA Hose Clamp Pliers
^ J 39500 A/C Refrigerant Recovery, Recycling, and Recharging (ACR4) System
^ J 39400-A Electronic Halogen Leak Detector
1. Recover the refrigerant. Service and Repair
2. Remove the cross car support brace.
3. Remove the IP assembly.
4. Drain the cooling system. Refer to Draining and Filling Cooling System.
5. Disconnect the right bank spark plug wires and bracket.
6. Remove the evaporator.
7. Remove the heater hoses from the heater core using the J 37097-A.
8. Remove the power steering pump.
9. Remove the air distributor.
10. Remove the aspirator adapter (C68 and CJ2).
11. Remove the heater and A/C programmer (C68 and CJ2).
12. Remove the bolts (5) that attach the heater and A/C module assembly (3) to the front of the dash (4).
13. Remove the bolts (1) and the studs (2) that attach the heater and A/C assembly (3) to the front of the dash (4).
14. Reposition the insulation as needed.
15. Remove the remainder of the heater and A/C module assembly (3).Rotate the assembly (3) as needed to clear the right rear corner of the engine.
16. If replacing the heater and A/C module assembly (3), transfer the heater core to a new module assembly (3).
INSTALLATION PROCEDURE
1. Install the heater and A/C module assembly (3) (partial).Rotate the assembly (3) as needed to clear the right rear corner of the engine.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the bolts (1) and the studs (2) to attach the heater and A/C module assembly (3) to the rear of the dash (4).Reposition the insulation as needed.
Tighten
Tighten the bolts and the studs to 5 N-m (44 lb in).
3. Install the bolts (5) to attach the heater and A/C module assembly (3) to the front of the dash (4).
Tighten
Tighten the bolts to 5 Nm (44 lb in).
4. Install the heater and A/C programmer (C68 and CJ2).
5. Install the aspirator adapter (C68 and CJ2).
6. Install the air distributor.
7. Install the vacuum source input to the right side of the air distributor.
8. Install the power steering pump.
9. Install the heater hoses to the heater core using the J 37097-A.
10. Install the evaporator.
11. Connect the right bank spark plug wires and bracket.
12. Install the IP assembly.
13. Install the cross car brace support.
14. Fill the cooling system. Refer to Draining and Filling Cooling System.
15. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging
16. Leak test the system. Refer to Leak Testing. Testing and Inspection