OEM 2004 Lincoln Aviator A/C Expansion Valve

2004 Lincoln Aviator A/C Expansion Valve Parts Questions & Experts Answers

• Q: How to service the A/C Expansion Valve on 2004 Lincoln Aviator?

  A: First recover the refrigerant before you begin work on the A/C expansion valve servicing process. As a part of the R-134a refrigerant system maintenance, use Refrigerant Compressor Oil (fit only F73Z-19577-AA Motorcraft YN-9-A) solely for O-ring seal lubrication to avoid using it as an A/C compressor lubricant. For the A/C compressor, you need to use PAG Refrigerant Compressor Oil F7AZ-19D589-DA (Motorcraft YN-12-C), which needs to be an equivalent lubricant product following Ford specification WSH-M1C231-B. A replacement receiver/drier becomes necessary when there is contamination from a faulty compressor failure or receiver/drier damage. Connect the A/C fittings back into place when you have put fresh O-ring seals that soaked in clean mineral oil. Follow the listed order when taking parts out and perform the installation steps in the opposite direction. Add PAG oil to the refrigerant system but with clean oil until it reaches the proper level, followed by testing for leaks and recharging with refrigerant.