Water Pump Replacement Water Pump Replacement
Removal Procedure
- Drain the coolant. Refer to
Cooling System Draining and Filling
.
- Remove the drive belt guard, bolts and the nuts. Refer to Engine
Mechanical.
- Loosen the water pump pulley bolts.
- Remove the drive belt. Refer to
Drive Belt Replacement
Engine Mechanical.
- Remove the water pump pulley bolts.
- Remove the water pump pulley.
- Remove the water pump attaching bolts.
- Remove the water pump.
- Remove the water pump gasket.
- Clean the water pump mating surfaces.
Installation Procedure
NOTICE: When adding coolant, it is important that you use GM Goodwrench DEX-COOL®
or HAVOLINE® DEX-COOL® coolant. If Coolant other than DEX-COOL®
or HAVOLINE® DEX-COOL® is added to the system the engine coolant will
require change sooner; at 50 000 km (30,000 mi)
or 24 months.
- Install the gasket.
- Install the water pump.
- Install the water pump mounting bolts.
Tighten
Tighten the water pump bolts to 10N·m (89 lb in).
- Install the water pump pulley. Loosely install the mounting bolts.
- Install the drive belt. Refer to
Drive Belt Replacement
Engine Mechanical.
- Tighten the water pump pulley bolts.
Tighten
Tighten the water pump pulley bolts to 25N·m (18 lb in).
- Install the drive belt guard, bolts and the nuts. Refer to Engine
Mechanical.
Important: Properly filling a system that has been completely drained will require
the use of the air bleed vents.
- Refill the coolant. Refer to
Cooling System Draining and Filling
.
- Inspect for leaks.