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Expansion Valve Removal/Installation: Notes

  1. Disconnect the negative battery cable.
  2. Discharge the refrigerant from the system. (See REFRIGERANT RECOVERY .) (See REFRIGERANT CHARGING .)
    CAUTION:
    • If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise will occur. Always immediately plug all open fittings after removing any refrigeration cycle parts to keep moisture or foreign material out of the cycle.
  3. Disconnect the cooler hose (LO) and cooler pipe. Do not allow compressor oil to spill. (See REFRIGERANT LINES REMOVAL/INSTALLATION  .)
  4. Remove the PJB. (See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION .)
  5. Remove the shower duct (RH).
  6. Remove the adhesive polyurethane (3). (See ADHESIVE POLYURETHANE (3) ASSEMBLY NOTE  .)
  7. Remove the bolt and shift the evaporator pipe. Do not allow compressor oil to spill.
  8. Remove the expansion valve. Do not allow compressor oil to spill.
  9. Install in the reverse order of removal.
    Fig 1: Expansion Valve Removal/Installation & Tightening Specifications
    G03636699Courtesy of MAZDA MOTORS CORP.
  10. Perform the refrigerant system performance test. (See REFRIGERANT SYSTEM PERFORMANCE TEST .)
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