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HOMESERVICE MANUALSGMC2013RV CUTAWAY 4.8L ENG VIN AREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATING, VENTILATION, AND AIR CONDITIONINGREPAIR INSTRUCTIONSAIR CONDITIONING ACCUMULATOR REPLACEMENTINSTALLATION PROCEDURE
2013 GMC RV Cutaway 4.8L Eng VIN A

Installation Procedure

2013 GMC RV Cutaway 4.8L Eng VIN ASECTION Installation Procedure
  1. If replacing the accumulator, add the specified amount of PAG oil directly into the accumulator. Refer to Refrigerant System Specifications .
    2. Fig 1: Accumulator Components
    GM834246Courtesy of GENERAL MOTORS COMPANY
  2. Install the accumulator (1).
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the screw (4) to the accumulator retaining bracket (2) and tighten to 9 N.m (80 lb in).
    4. Fig 2: Low Pressure Switch And Electrical Connector
    GM924798Courtesy of GENERAL MOTORS COMPANY
  4. Connect the low pressure sensor electrical connector (1).
    5. Fig 3: Accumulator And Hose Components
    GM924801Courtesy of GENERAL MOTORS COMPANY
  5. Install new sealing washers. Refer to Air Conditioning System Seal Replacement .
  6. Install the evaporator outlet pipe.
  7. Install the evaporator outlet pipe retaining nut (1) to the accumulator and tighten to 16 N.m (12 lb ft).
  8. Install the compressor suction hose.
  9. Install the compressor suction hose retaining nut (2) to the accumulator and tighten to 16 N.m (12 lb ft).
  10. Install the coolant reservoir. Refer to Coolant Recovery Reservoir Replacement .
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the component using the J 39400-A  detector.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.