Heater - A/C Housing Removal and Installation

The instrument panel must be removed in order to remove the Unit Housing. Refer to: "Instrument Panel, Gauges and Warning Indicators : Instrument Panel : Service and Repair" Service and Repair

WARNING: THE R-134a REFRIGERANT SYSTEM MUST BE RECOVERED BEFORE SERVICING ANY PART OF THE REFRIGERANT SYSTEM.

REMOVAL
1. Remove instrument panel from vehicle. Refer to: "Instrument Panel, Gauges and Warning Indicators : Instrument Panel : Service and Repair" Service and Repair.
2. Drain cooling system and remove heater hoses at the dash panel. Place plugs in the heater core outlets to prevent coolant spillage during unit housing removal. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" Service and Repair
3. Using a refrigerant recovery machine, remove the refrigerant from the A/C system, if equipped. Refer to: "Heating and Air Conditioning : Service and Repair" Service and Repair
4. Remove suction line at expansion valve. Place a piece of tape over open refrigerant line to prevent moisture and/or dirt from entering the line.
5. Remove expansion valve from evaporator. Place a piece of tape over open evaporator fitting to prevent moisture and/or dirt from entering the evaporator.
6. Remove rubber drain tube extension from condensation drain tube.

Dash Panel Studs:

7. Remove three retaining nuts located in the engine compartment, on the dash panel.

Retaining Screws:

8. Remove the right side retaining screw.
9. Remove remaining nut located on dash panel stud.
10. Disconnect the blue five way connector from the plenum. Module wiring harness must be removed with module.
11. Remove assembly from the vehicle.

For HVAC Unit Housing Disassembly and Assembly, refer to: "Evaporator Core : Service and Repair" Service and Repair

INSTALLATION
- For installation, reverse the above procedures.