Housing Assembly HVAC: Service and Repair

A/C UNIT ASSEMBLY

Exploded View MTC-58:

Removal and Installation

REMOVAL
1. Use a recovery/recycling equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system.
3. Remove cowl top cover.
4. Remove lower dash insulator.




5. Remove bolt (A), and then disconnect low-pressure flexible hose (1) and high-pressure pipe (2) from evaporator.

CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.




6. Remove clamps (A), and then disconnect heater hoses (1) from heater core.
7. Remove console box assembly.




8. Remove instrument stay nuts (A) and harness clamps (B), and then remove instrument stay (1).




9. Disconnect thermo control amp. connector (1) for TYPE 1 systems as shown. Disconnect the thermo control amp. short connector for TYPE 2 systems.
10. Remove instrument panel and pad.
11. Remove side ventilator ducts.
12. Remove center ventilator ducts.
13. Remove side kicking plates.
14. Disconnect the fuel filler door cable and the rear hatch door cable.
15. Remove A/C unit assembly bolts, steering member bolts, steering column nuts and harness clips.
16. Remove steering member, and then remove A/C unit assembly.

INSTALLATION
Installation is in the reverse order of removal.
- When filling radiator with coolant.
- Recharge the refrigerant.

A/C unit assembly bolt : 6.9 N.m (0.7 kg-m, 61 in-lb)
Steering member bolt : 12 N.m (1.25 kg-m, 9 ft-lb)

Exploded View PS-9:

Steering column nut

CAUTION:
- Replace O-rings for A/C piping with new ones, and apply compressor oil when installing.
- When recharging refrigerant, check for leaks.