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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1653 (HVAC SYSTEMS - TROUBLESHOOTING)REPAIR INSTRUCTIONSO-RING REPLACEMENTINSTALLATION PROCEDURE
2004 Oldsmobile Bravada AWD

Installation Procedure

2004 Oldsmobile Bravada AWDSECTION Installation Procedure
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect the new O-ring seal for any sign or cracks, cuts, or damage. Replace if necessary.
  2. Remove the cap or tape from the A/C refrigerant components.
  3. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant components.
    4. IMPORTANT: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the new O-ring seal to enter the refrigerant system.
  4. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.
    5. IMPORTANT: DO NOT reuse O-ring seals.
  5. Carefully slide the new O-ring seal onto the A/C refrigerant component.
    6. Fig 1: Identifying Proper Seating Of A/C Refrigerant O-Ring
    GM662315Courtesy of GENERAL MOTORS CORP.
  6. The O-ring seal must be fully seated.
    7. Fig 2: Disassembling/Reassembling A/C Line Fittings
    GM297225Courtesy of GENERAL MOTORS CORP.
  7. Assemble the A/C components.

    Refer to the appropriate repair procedure.

    • For compression style fittings use a back up wrench on the fitting (2) and tighten the fitting nut (1) to specification.
    • For banjo style fittings install the bolt retaining the banjo type fitting and tighten to specification.
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.