OEM Ford F-150 Heritage A/C Accumulator

Ford F-150 Heritage A/C Accumulator Parts and Q&A

• Drier
  6L3Z-19C836-AB
  Q: How to Service the A/C Accumulator in the HVAC System on Ford F-150 Heritage?

  A:

  The first step in servicing the suction accumulator within HVAC is disconnecting the ground cable from the battery and removing the junction block splash shield. The first step includes detaching the starter relay's two cable ends followed by unbolted removal of the junction block bracket holding bolts. Recovery of refrigerant requires two steps before disconnecting the electrical connector on the A/C cycling switch and the manifold along with the tube fitting. Throw away the O-ring seals. To uninstall the suction accumulator/drier spring lock coupling from the A/C Evaporator core users must first remove the accumulator bracket clamping bolt while discarding all O-ring seals. Remove the suction accumulator and then disconnect the A/C cycling switch from its upper position. Before reinstallation follow the uninstallation steps while applying new O-rings which should be lubricated with clean mineral oil and perform correct amounts of clean mineral oil lubrication on the refrigerant system. The appropriate lubricant for an A/C compressor is Refrigerant Compressor Oil F7AZ-19589-DA (Motorcraft YN-12-C) or equivalent Ford-approved product WSH-M1C231-B. Just use Refrigerant Compressor Oil (Mineral Oil) F73Z-19577-AA (Motorcraft YN-9-A) to lubricate R-134a refrigerant system O-ring seals but do not use it as compressor lubricant for R-134a refrigerant system. New suction accumulators should be installed only when evidence shows the system is contaminated by either a non-functional A/C compressor or damage to the accumulator.