For 1990-2009 cars

### Removal Procedure

#### Tools Required

J 39500-B A/C Refrigerant Recovery, Recycling, and Recharging Station

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Recover the A/C system. Refer to Refrigerant Recovery and Recharging .
3. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
5. Remove the drain tube elbow from the heater core cover.
6. Remove the bolt from behind the steering gear and from the sides of the heater core inlet/outlet.
7. Lower the vehicle.
8. Remove the floor outlet. Refer to Floor Air Outlet Replacement .

Remove the instrument panel and console. Refer to Console Replacement in Instrument Panel, Gauges, and Console.

Turn the outlet clockwise and to the right in order to release the outlet from the rear floor air outlet.

9. Remove the screw and the clips that retain the windshield defroster duct.

Remove the windshield defroster duct.

10. Remove the vacuum harness from the vacuum actuators.
11. Remove the nuts which attach the HVAC module to the cowl.

Remove the HVAC module from the cowl.

### Installation Procedure

#### Tools Required

J 39500-B A/C Refrigerant Recovery, Recycling, and Recharging Station

1. Position the HVAC module into the vehicle.
2. Install the nuts which attach the HVAC module to the dashboard.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Position the windshield defroster duct.

Install the clips and the screw.

Tighten
Tighten the screw to 1 N·m (9 lb in).

4. Install the bolts to the driver's side of the blower case.

Tighten
Tighten the bolts to 3 N·m (27 lb in).

5. Install the instrument panel. Refer to Console Replacement in Instrument Panel, Gauges, and Console.
6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
7. Install the drain tube elbow to the heater core cover.
8. Install the heater hoses to the heater core.
9. Install the bolts behind the steering gear and to the sides of the heater core inlet/outlet.

Tighten
Tighten the bolt to 3 N·m (27 lb in).

10. Lower the vehicle.
11. Install the floor outlet. Secure the floor outlet with the screws. Refer to Floor Air Outlet Replacement .

Verify for proper engagement to the rear floor air outlet.

12. Install the vacuum harness to the vacuum actuators.
13. Fill the engine cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
14. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .