Grand Cherokee 2WD L6-4.0L VIN S (1997)
Water Pump: Service and Repair
Installation
1. If pump is being replaced, install the healer hose fitting to the pump. Use a sealant on the fitting such as Mopar (R) Thread Sealant With Teflon.
Refer to the directions on the package.
2. Clean the gasket mating surfaces. If the original pump is used, remove any deposits or other foreign material. Inspect the cylinder block and water
pump mating surfaces for erosion or damage from cavitation.
3. Install the gasket and water pump. The silicone bead on the gasket should be facing the water pump. Also, the gasket is installed dry. Tighten
mounting bolts to 30 Nm (22 ft. lbs.) torque. Rotate the shaft by hand to be sure it turns freely.
4. Connect the radiator and heater hoses to the water pump.
5. Position water pump pulley to water pump hub.
6. If equipped with a water pump mounted fan, install fan and four nuts to water pump hub. If not equipped with a water pump mounted fan, install
four pump hub bolts. Tighten bolts (or nuts) to 27 Nm (20 ft. lbs.) torque.
7. Install power steering pump.
CAUTION: When installing the serpentine engine accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to
the water pump rotating in the wrong direction. Refer to the Belt Routing Label in the vehicle engine compartment.
8. Adjust accessory drive belt.
9. Fill cooling system with coolant and check for leaks.
10. Connect battery cable to battery.
11. Start and warm the engine. Check for leaks.