Rear HVAC Housing Removal

REMOVAL

WARNING: Refer to the applicable warnings and cautions for this system before performing the following operation Warning and Refrigerant Oil Capacity . Failure to follow the warnings and cautions may result in serious or fatal injury.

NOTE: The rear heater-A/C housing must be removed from the vehicle for service of the blower motor and disassembled for service of the A/C evaporator, heater core, mode-air door and blend-air door.





1. Disconnect and isolate the negative battery cable.
2. Recover the refrigerant from the refrigerant system Refrigerant System Recovery.
3. Drain the engine cooling system Service and Repair.
4. Raise and support the vehicle.
5. Remove the nut (1) that secures the rear suction line (2) and the rear liquid line (3) to the rear evaporator extension line tapping plate that extends through the rear floor panel (4) behind the right rear wheel housing.
6. Disconnect the rear suction line and liquid line from the rear evaporator extension line tapping plate.
7. Remove the O-ring seals from the rear suction line and liquid line fittings and discard.
8. Install plugs in, or tape over the opened refrigerant lines and tapping plate ports.
9. Disconnect the rear heater hoses (5) from the rear heater core tubes that extend through the rear floor panel behind the right rear wheel housing.





10. Lower the vehicle.
11. Remove right rear quarter panel trim Quarter Trim Panel - Removal.
12. Remove the rear distribution ducts from the rear HVAC housing (1) Floor Distribution Duct - Removal.
13. Disconnect the body wire harness connector (2) from the rear heater-A/C wire harness connector (3).






NOTE: Illustration shown with rear heater-A/C housing retaining bolts removed for clarity.

NOTE: The three rear heater-A/C housing retaining bolts have a retaining washer to keep them attached to the rear housing. It is not necessary to completely remove the retaining bolts from the rear housing to remove the housing from the vehicle.

14. Completely loosen the three bolts (1) that secure the rear heater-A/C housing (2) to the rear interior quarter panel (3).
15. Remove the rear heater-A/C housing from the vehicle.