Installation Procedure

WARNING: This page is about a different car, the 2008 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Locating Water Pump Drain Plug

Courtesy of GENERAL MOTORS CORP.

Apply sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent to the water pump drain plug.

NOTE: Refer to Fastener Notice .

Install the water pump drain plug.
Tighten: Tighten the drain plug to 20 N.m (15 lb ft).

Fig 2: View Of Water Pump Bolts

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IMPORTANT: A guide pin can be created to aid in water pump alignment. Use a M6 m x 6 mm stud. Thread the pin into the water pump sprocket.

Using the J 25025-5 , or a guide pin align the pin with the water pump holding tool. See Special Tools .
Position the water pump against the engine block and hand tighten the water pump bolts.
Install the inner water pump sprocket bolts. After 2 are snug, remove the guide pin and install the 3rd bolt.
Tighten: Tighten the water pump bolts to 25 N.m (18 lb ft).
Tighten the water pump sprocket bolts last.
Tighten: Tighten the water pump sprocket bolts to 10 N.m (89 lb in).

Fig 3: View Of Water Pump Holding Tool

Courtesy of GENERAL MOTORS CORP.

Remove the J 43651 . See Special Tools .
Install the coolant heater. Refer to Coolant Heater Replacement (LZ4) or Coolant Heater Replacement (LY7) or Coolant Heater Replacement (LE5) or Coolant Heater Replacement (LAT) .

Fig 4: View Of Water Pump Access Plate At Front Cover

Courtesy of GENERAL MOTORS CORP.

Install the water pump access plate and bolts.
Tighten: Tighten the bolts to 10 N.m (89 lb in).
Install the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement (LZ4) or Engine Coolant Thermostat Housing Replacement (LAT) or Engine Coolant Thermostat Housing Replacement (LE5) or Engine Coolant Thermostat Housing Replacement (LY7) .