OEM Lincoln Zephyr A/C Expansion Valve

Lincoln Zephyr A/C Expansion Valve Parts Questions & Experts Answers

• Expansion Valve
  6E5Z-19849-AA
  Q: How to Service and Repair the A/C Expansion Valve on Lincoln Zephyr?

  A: On 3.0L vehicles, you need to take off the lower cowl panel grille before you can service and fix the A/C expansion valve. Remove the refrigerant from the system before disconnecting the A/C pressure transducer electrical connector and removing the wire harness from the A/C expansion valve stud. First, unscrew the A/C expansion valve fitting nut and remove the fitting, discarding its gasket seals. After putting everything back, you must fasten the fitting at 15 Nm (11 lb-ft) torque. Unscrew the two A/C expansion valve bolts and carefully take out the valve, discarding its sealing gaskets. Reassemble the system by reversing the installation process. Use fresh gasket seals and fill the refrigerant system with the needed amount of clean PAG oil. Afterward, charge the system with refrigerant while checking for any leaks. You need to replace the A/C desiccant cartridge physically only when the system shows signs of contamination that harm the compressor or damage the cartridge.