GM Service Manual Online
For 1990-2009 cars only
  1. Install the water pump and gasket to the cylinder block.
  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.

  3. Install the water pump bolts to the cylinder block.
  4. Tighten
    Tighten the water pump bolts as follows:

    • Bolts (M10) to 36 N·m (28 lb ft).
    • Bolts and nuts (M8) to 19 N·m (14 lb ft).

    Important: Apply a small amount of liquid soap on the o-ring for easier installation.

  5. Install the water duct and the o-ring to the cylinder head and the water pump.
  6. Install the bolts to the water duct.
  7. Tighten
    Tighten the water duct bolts as follows:

    • Bolts marked M8 to 19 N·m (14 lb ft).
    • Bolts marked M16 to 103 N·m (76 lb ft).