For 1990-2009 cars

### Removal Procedure

1. Discharge and recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
2. Disconnect the A/C refrigerant pressure switch electrical connector.
3. Remove the A/C refrigerant pressure switch. Use a second wrench to hold the switch mount to avoid bending the liquid line.

### Installation Procedure

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.

Important:

• | Use new O-rings lubricated with 525 viscosity mineral oil.

• | Hold the A/C refrigerant pressure switch mount with an open end wrench to avoid bending the liquid line.

1. Install the A/C refrigerant pressure switch.

Tighten
Tighten the A/C refrigerant pressure switch to 10 N·m (7.0 lb ft).

2. Connect the A/C refrigerant pressure switch electrical connector.
3. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
4. Operate the A/C system and check for leaks. Refer to Leak Testing .