To remove the A/C Compressor, the refrigerant must be discharged and the negative cable disconnected from the battery. The drive belt must be removed from the compressor, and on V6 models, the alternator must also be removed. The wiring connector and refrigerant lines must be detached, and then the compressor can be unbolted and lifted from the vehicle. When installing a new or rebuilt compressor, follow the manufacturer's instructions for proper oil level before installation. Replace any O-rings with new ones made for the purpose and lubricate them with refrigerant oil. Finally, have the system evacuated, recharged, and leak tested.