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Water Pump: Service and Repair



Water Pump Replacement (RPOs L26/L32)
Removal Procedure





1. Drain the cooling system. Refer to Draining and Filling Cooling System (L26 Static Fill) Draining and Filling Cooling System (LY7 Static Fill) Draining and Filling Cooling System (L26, LY7, GE 47716 Fill).
2. Reposition the accessory wiring junction block.
3. Loosen the water pump pulley bolts.
4. Remove the drive belt.
5. Remove the water pump pulley bolts.
6. Remove the water pump pulley.
7. Remove the power steering pump mounting bolts and reposition.





8. Remove the water pump bolts.





9. Remove the water pump.
10. Remove the water pump gasket.
11. Clean and inspect the water pump gasket mating surfaces.

Installation Procedure





1. Install the gasket and the water pump.

2. Notice: Refer to Fastener Notice in Service Precautions.

Install the water pump bolts.
^ Tighten the long water pump bolts to 34 Nm (25 ft. lbs.).
^ Tighten the short water pump bolts to 22 Nm (16 ft. lbs.)





3. Install the water pump pulley.
4. Install the water pump pulley bolts.
^ Tighten the bolts to 13 Nm (115 inch lbs.).
5. Install the power steering pump.
6. Install the drive belt.
7. Install the accessory wiring junction block.
8. Fill the cooling system. Refer to Draining and Filling Cooling System (L26 Static Fill) Draining and Filling Cooling System (LY7 Static Fill) Draining and Filling Cooling System (L26, LY7, GE 47716 Fill).
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