Cherokee 4WD L6-4.0L VIN S (1998)
Fig.24 Power Steering Pump Attachment-4.0L
10. Remove power steering pump and bracket, refer to Steering.
11. Remove lower radiator hose from water pump. Remove heater hose from water pump fitting.
Fig.25 Water Pump Remove/Install- Typical
12. Remove the four pump mounting bolts and remove pump from vehicle. Discard old gasket. Note that one of the four bolts is longer than the other
bolts.
13. If pump is to be replaced, the heater hose fitting must be removed. Note position of fitting before removal.
INSTALLATION-4.0L ENGINE (LHD/RHD)
1. If pump is being replaced, install the heater hose fitting to the pump. Use a sealant on the fitting such as Mopar Thread Sealant With Teflon.
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. Install four pump pulley bolts. Tighten bolts (or nuts) to 27 Nm (20 ft. lbs.) torque.
