OEM Ford Freestar A/C Accumulator

Ford Freestar A/C Accumulator Parts Questions & Experts Answers

• Accumulator
  6F2Z-19C836-AB
  Q: How to Service the A/C Accumulator in the HVAC System on Ford Freestar?

  A: Starting the suction accumulator service of the HVAC system requires refrigerant recovery as the first step. A single use of F73Z-19577-AA (Motorcraft YN-9-A) mineral oil as a lubricant exists exclusively for R-134a refrigerant system O-ring seals but should never reach the A/C compressor. The recommended oil for A/C compressor lubrication is PAG refrigerant compressor oil F7AZ-19D589-DA (Motorcraft YN-12-C) or an equivalent which adheres to Ford specification WSH-M1C231-B. Replacement A/C fittings need installation of new O-ring seals which must receive lubrication by clean mineral oil before reinstalling them. A suction accumulator replacement becomes essential only when a failed A/C compressor or suction accumulator damage leads to system contamination. Follow the specified order for component removal before reinstalling everything according to the removal sequence. Clean PAG oil requires proper measurement before the system receives lubrication before an evacuation procedure and final leak test and refrigerant charge completion.