A/C compressor replacement is required when the pump seizes or leaks refrigerant. The procedure requires recovering the refrigerant first. Then, you unbolt the lines and electrical connectors. After installing the new compressor, you must balance the oil, pull a vacuum to remove moisture, and recharge the system. Replacing the accumulator/dryer is also required to maintain the warranty.
Mechanic Glossary
A/C Compressor Replacement
The mechanical procedure of removing a failed A/C compressor and installing a new unit.
Frequently Asked Questions
You can do the mechanical swap, but you must have a professional shop recover the refrigerant first. Discharging refrigerant into the air is illegal.
Typically 2 to 4 hours, depending on engine bay clearance and access to the mounting bolts.
Yes. You must replace the receiver-drier or accumulator and the expansion valve to prevent debris from the old compressor from ruining the new one.