Replace water pump 1995 aurora - 1995 Oldsmobile Aurora

Water Pump REMOVAL & INSTALLATION 3.5L Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Partially drain the cooling system.
3. Remove or disconnect the following:
   • Water pump pulley bolts, loosen but do not remove at this time
   • Drive belt
   • Idler pulley
   • Water pump pulley
   NOTE: The water pump is attached to the engine with both long and short bolts, be sure to note their locations.
   • Water pump and discard the gasket
   NOTE: Note the locations of the 5 long bolts.
   
4. Clean the water pump mounting surface. Fig. 1: Be sure to install the 5 long water pump bolts in the correct locations - 3.5L engine
   Fig. 2: Water pump mounting - 3.5L engine
   To install: NOTE: Be sure to install the 5 long bolts in the proper locations.
   
5. Install or connect the following:
   • Water pump using a new gasket. Torque the bolts to 124 inch lbs. (14 Nm).
   • Water pump pulley
   • Idler pulley. Torque the bolt to 37 ft. lbs. (50 Nm).
   • Drive belt
6. Refill the cooling system.
7. Start the engine and check for leaks.

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Disconnect the negative battery cable.
3. Drain the cooling system.
4. Remove or disconnect the following:
   • Serpentine belt
   • Heater and bypass hoses from the water pump
   • Water pump pulley
   NOTE: The long bolt can be removed by aligning the bolt head with the frame rail hole.
   
5. Install an engine support fixture.
6. Remove or disconnect the following:
   • Torque axis mount
   • Water pump and discard the gasket
   To install: Fig. 3: Exploded view of the water pump and mounting bolt locations - 3.8L engines
   
   
7. Thoroughly clean all the sealing surfaces.
8. Apply a thin bead of sealer around the outside edge of the water pump
9. Install or connect the following:
   • New gasket
   • Water pump. Torque the inlet and outlet side bolts to 29 ft. lbs. (39 Nm) and the remaining bolts to 97 inch lbs. (11 Nm).
   • Torque axis mount
10. Remove the support fixture.
11. Install or connect the following:
    • Water pump pulley
    • Water pump hoses
    • Serpentine belt
    • Water pump pulley bolts. Torque the bolts to 115 inch lbs. (13 Nm).
    • Negative battery cable
12. Refill the cooling system.
13. Start the vehicle and check for proper operation.

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Disconnect the negative battery cable.
3. Drain the cooling system.
4. Remove or disconnect the following:
   • Air inlet duct
   • Water pump drive belt cover
   • Water pump drive belt
   • Lower radiator hose and bypass hose
   • Thermostat housing from the water pump housing
   • Water pump from the water pump housing, by turning the locking ring with a Water Pump Remover/Installer tool J-38816
   To install: Fig. 4: Exploded view of the water pump housing and water pump - 4.0L engine
   
   
5. Install or connect the following:
   • Water pump, seat the locking ring
   • Thermostat housing to the water pump housing
   • Lower radiator hose and coolant bypass hose
   • Drive belt and drive belt cover
   • Air inlet duct
   • Negative battery cable
6. Refill and bleed the cooling systreplace water pump 1995 aurora - prev.gif>

I had to use a 3 foot pole around my socket handle to free it up. I heard the same from others. Don't be afraid to apply some force.