GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Intrigue 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Suction Hose Replacement

Removal Procedure
  1. Remove the air cleaner and duct assembly. Air Cleaner Assembly Replacement in Engine Controls.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the brake modulator/master cylinder. Refer to Brake Modulator/Master Cylinder Assembly Replacement in Antilock Brake System.

    4. Object Number: 284638 Size: SH
  4. Remove the liquid line/suction line bracket.

    5. Object Number: 379823 Size: SH
  5. Remove the suction line nut (3) at the accumulator.

    6. Object Number: 379817 Size: SH
  6. Position aside the suction line at the accumulator.

    7. Object Number: 284638 Size: SH
  7. Remove the suction line block fitting bolt.
  8. Remove the suction line.
  9. Remove and discard the suction line O-rings seals.

Installation Procedure

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

  1. Install the new O-ring seals onto the suction line. Refer to O-Ring Replacement .
  2. Install the suction line into place.

    3. Object Number: 284638 Size: SH

    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.

  3. Install the suction line into the block fitting.

    4. Install the block fitting bolt.

    Tighten
    Tighten the block fitting bolt to 16 N·m (12 lb ft).


    Object Number: 379823 Size: SH
  4. Install the suction line nut (3) at the accumulator.

    5. Tighten
    Tighten the suction line nut to 47 N·m(35 lb ft).


    Object Number: 284638 Size: SH
  5. Install the liquid line/suction line bracket.
  6. Install the brake modulator/master cylinder. Refer to Brake Modulator/Master Cylinder Assembly Replacement in Antilock Brake System.
  7. Evacuate and recharge the system. Refer to Refrigerant Recovery and Recharging .
  8. Inspect the A/C system for leaks. Refer to Leak Testing .
  9. Remove the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.