Whenever the A/C Compressor is replaced due to internal damage, the orifice tube should also be replaced, and the accumulator should be replaced whenever the A/C Compressor is replaced. Begin by discharging the air conditioning system. Raise the vehicle and support it securely on jackstands. Remove the splash shield from below the engine if equipped. Remove the drivebelt. Clean the A/C Compressor thoroughly around the refrigerant line fittings. Disconnect the electrical connector from the A/C Compressor, then disconnect the suction and discharge lines from the compressor. Plug the open fittings to prevent the entry of dirt and moisture, and discard the seals between the plates and compressor. Remove the compressor mounting bolts, detach the A/C Compressor from the mounting bracket, and take it out of the engine compartment. If installing a new A/C Compressor, pour the oil from the old compressor into a graduated container and add that exact amount of new refrigerant oil to the new A/C Compressor, following any included directions. Some replacement A/C Compressors may come with refrigerant oil; follow the directions regarding draining excess oil prior to installation. Ensure the oil used is compatible with R-134a refrigerant systems. Installation is the reverse of removal; when installing the line fitting bolt to the A/C Compressor, use new seals lubricated with clean refrigerant oil and tighten the bolt securely. Finally, have the system evacuated, recharged, and leak tested by the shop that discharged it.