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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation And Air Conditioning >> Repair Instructions >> Accumulator Replacement >> Installation Procedure

Installation Procedure

  1. Remove the caps or remove tape from the A/C fittings.
  2. If replacing the accumulator, add the PAG oil to the accumulator. Refer to REFRIGERANT SYSTEM CAPACITIES  for capacity information.
  3. Install the accumulator to the mounting bracket.
  4. Install the accumulator and mounting bracket to the module.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  5. Install the accumulator mounting bracket bolt.

    Tighten 

    Tighten the bolt to 4 N.m (35 lb in).

    Fig 1: Installing Accumulator Mounting Bracket Bolt
    G01645596Courtesy of GENERAL MOTORS CORP.
  6. Install new O-ring seals. Refer to O-RING REPLACEMENT  .
  7. Install the compressor suction hose (1) to the accumulator.
    Fig 2: Installing Compressor Suction Hose
    G01645597Courtesy of GENERAL MOTORS CORP.
  8. Tighten the compressor suction hose nut.

    Tighten 

    Tighten the nut to 48 N.m (35 lb ft).

  9. Install the evaporator tube to the accumulator.
  10. Tighten the evaporator tube nut at the accumulator.

    Tighten 

    Tighten the nut to 28 N.m (20 lb ft).

  11. Install the low pressure switch.

    Tighten 

    Tighten the switch to 6 N.m (53 lb in).

  12. Connect the low pressure switch electrical connector.
  13. Evacuate and charge the system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  14. Leak test the fitting(s) of the repaired or reinstalled component using the J 39400-A. 
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