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Home >> Jeep >> 1979 >> Wagoneer Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> A/C Compressor >> Compressor Replacement >> Compressor Discharge Method >> Removal
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Compressor Discharge Method: Removal

  1. If possible, operate A/C system for 10 minutes with engine at 1000-1200 RPM and system controls set for maximum cooling and high fan speed. Stop engine.
  2. If equipped with a Low Refrigerant Protection System (most GM vehicles), disconnect thermal limiter connector.
  3. Discharge the system. When discharge is complete, slowly loosen screw which retains compressor fitting assembly to compressor. As screw is being loosened, work fitting assembly back and forth to break the seal and carefully bleed off any remaining pressure. Now remove screw, fitting assembly, and "O" rings. Immediately cap all system openings.
  4. Disconnect compressor clutch coil wire and superheat switch wire (if equipped). Remove compressor retaining bolts and lift compressor from vehicle.
  5. Measure and discard compressor oil.
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