GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Intrigue 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Compressor Pressure Relief Valve Replacement

Removal Procedure
  1. Remove the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

    3. Object Number: 284018 Size: SH
  3. Remove the pressure relief valve from the compressor head (1).
  4. Remove and discard the O-ring seal.

Installation Procedure

    Important: The new O-ring must be coated with mineral base 525 viscosity refrigerant oil.

  1. Install the new O-ring to the pressure relief valve.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 284018 Size: SH
  2. Install the pressure relief valve to the compressor head (1).

    3. Tighten
    Tighten the pressure relief valve to 9 N·m (80 lb in).

  3. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  4. Inspect the A/C system for leaks. Refer to Leak Testing .
  5. Install the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.