GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the accessory drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Accessory .

  3. Object Number: 1198506  Size: SH
  4. Disconnect the generator cooling hose from the water pump. Refer to Generator Cooling Pipe/Hose Quick Connect Fitting .

  5. Object Number: 1198516  Size: SH
  6. Remove the generator cooling inlet hose fitting from the vehicle.
  7. Remove and discard the seal washer.

Installation Procedure

    Important: Flat washer type seals do not require lubrication.

  1. Inspect the new seal washer for any signs of cracks, cuts, or damage.
  2. Do not use a damaged seal washer.


    Object Number: 818438  Size: SH

    Important: The seal washer must completely bottom against the surface of the fitting.

  3. Using a lint-free clean, dry cloth, clean the sealing surfaces at the water pump and generator cooling inlet hose fitting.
  4. Carefully install the new seal washer onto the generator cooling inlet hose fitting.


    Object Number: 1198516  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.

  5. Install the generator cooling inlet hose fitting to the vehicle.
  6. Tighten
    Tighten the fitting to 25 N·m (18 lb ft).


    Object Number: 1198506  Size: SH
  7. Connect the generator cooling hose to the water pump. Refer to Generator Cooling Pipe/Hose Quick Connect Fitting .
  8. Install the accessory drive belt tensioner. Refer to Drive Belt Tensioner Replacement - Accessory .
  9. Fill the cooling system. Refer to Cooling System Draining and Filling .