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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 611 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Accumulator Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Retaining Bracket & Accumulator
    GM660416Courtesy of GENERAL MOTORS CORP.
  1. Add the proper amount of PAG oil to the accumulator. Refer to Refrigerant System Capacities .
  2. Install new O-ring seals. Refer to O-Ring Replacement .
  3. Install the retaining bracket (6) to the accumulator.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the retaining bracket bolt (5).

    Tighten:  Tighten the bolt to 10 N.m (89 lb in).

  5. Install the accumulator (3).
  6. Install the accumulator bracket nut (4).

    Tighten:  Tighten the nut to 9 N.m (80 lb in).

  7. Install the nut (2) to the evaporator fitting.

    Tighten:  Tighten the nut to 16 N.m (12 lb ft).

  8. Install the compressor hose to the accumulator.
  9. Install the compressor hose nut to the accumulator.

    Tighten:  Tighten the nut to 16 N.m (12 lb ft).

  10. Connect the electrical connector to the A/C low pressure switch.
  11. Evacuate and recharge the system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the component using the J 39400-A  . See Special Tools and Equipment .
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