OEM Ford E-250 A/C Expansion Valve

Ford E-250 A/C Expansion Valve Parts Questions & Experts Answers

• Expansion Valve
  F4UZ-19849-A
  Q: How to service the auxiliary A/C expansion valve on Ford E-250?

  A: To service the auxiliary climate control thermostatic expansion valve, begin by ensuring that Refrigerant Compressor Oil (Mineral Oil) F73Z-19577-AA (Motorcraft YN-9-A) is used solely to lubricate the O-ring seals of the R-134a refrigerant system, and do not add it to the system as an A/C compressor lubricant; instead, use PAG Refrigerant Compressor Oil F7AZ-19589-DA (Motorcraft YN-12-C) or an equivalent that meets Ford specification WSH-M1C231-B. Start by removing the A/C Evaporator core, taking care not to damage the capillary bulb or tube. Unite the capillary bulb from the evaporator outlet pipe before taking off the R-134a insulating tape for later use. Place the bulb clip aside before continuing to remove the thermostatic expansion valve (TXV). Use a wrench on both ends of the refrigerant lines when disconnecting them in order to protect the lines from damage. When you install this new valve you need to follow the previous steps of removal while fitting proper seals lubricated in mineral oil.