Q: How to replace a condenser in an air conditioning system on Lincoln Navigator?
A: On some models, special spring-lock coupling tools are required to release the connectors used on the refrigerant lines throughout the air conditioning system. There are different special tools for each line size; these tools can usually be found at local auto parts stores, often in a set. Removal: Whenever a condenser is replaced, it will be necessary to replace the accumulator/drier. Take the vehicle to a dealer service department or automotive air conditioning shop and have the air conditioning system discharged. Disconnect the battery cables and remove the battery and battery tray. Remove the cooling fan and shroud assembly. Remove the degas bottle and Radiator. Disconnect the two fittings holding the refrigerant lines to the right side of the condenser. Remove the condenser mounting brackets bolted to the radiator support. Carefully lift the condenser out of the bottom cradle supports. Installation: If the condenser is being replaced with a new one, transfer the brackets and mounts from the old unit to the new one. When replacing the condenser add one ounce of new refrigerant 011 to the condenser before reassembly. Before installation, check the bracket assemblies and mounts for excessive wear or damage. Replace them if necessary. The installation procedures are the reverse of those for removal. When connecting the hose and fittings, use new 0-rings and lubricate them with clean refrigerant oil (where applicable). After the condenser is installed have the system evacuated, recharged and leak tested by a dealer service department or an air conditioning repair facility.