GM Service Manual Online
For 1990-2009 cars only

Notice: DO NOT use cooling system seal tabs, or similar compounds, unless otherwise instructed. The use of cooling system seal tabs, or similar compounds, may restrict coolant flow through the passages of the cooling system or the engine components. Restricted coolant flow may cause engine overheating and/or damage to the cooling system or the engine components/assembly.


    Object Number: 260121  Size: SH

    Important: All gasket surfaces to be free of oil or other foreign material during assembly.

  1. Install the water pump and NEW gaskets.
  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.
  4. Tighten

    1. Tighten the water pump bolts first pass to 15 N·m (11 lb ft).
    2. Tighten the water pump bolts final pass to 30 N·m (22 lb ft).
  5. Install the water pump drive belt pulley and bolts (if applicable).
  6. Tighten

    1. Tighten the pulley bolts first pass to 10 N·m (89 lb in).
    2. Tighten the pulley bolts final pass to 25 N·m (18 lb ft).