GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Aurora 🢒 HVAC 🢒 Heating, Ventilation and Air Conditioning 🢒 Suction Hose Replacement

Suction Hose Replacement L47

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the lower radiator air deflector. Refer to Front Air Deflector Replacement in Body Front End.

    3. Object Number: 527478 Size: SH
  3. Disconnect the suction hose from the compressor.
  4. Lower the vehicle.
  5. Disconnect the upper radiator hose from the clip on the upper tie bar.

    6. Object Number: 608777 Size: SH
  6. Disconnect the suction hose (1) from the accumulator.

    7. Object Number: 527471 Size: SH
  7. Disconnect the suction hose from the clips at the fan shroud.
  8. Remove the hose from the vehicle.

Installation Procedure

    Important: Inspect the seal washers for damage before reinstalling the A/C lines and hoses.

    If any damage is noted during inspection, the suspect seal must be replaced.

    Flat washer type seals do not require lubrication.

  1. Position the suction hose into the vehicle.

    2. Object Number: 608777 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.

  2. Install the suction hose (1) and nut to the accumulator.

    3. Tighten
    Tighten the nut to 20 N·m (15 lb ft).


    Object Number: 527473 Size: SH
  3. Install the suction hose into the clips at the fan shroud.
  4. Install the upper radiator hose into the clip and fasten.
  5. Raise the vehicle.

    6. Object Number: 527478 Size: SH
  6. Install the suction hose and nut to the compressor.

    7. Tighten
    Tighten the nut to 20 N·m (15 lb ft).

  7. Lower the vehicle.
  8. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  9. Leak test the fittings of the component using the J 39400-A .
  10. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.