Cherokee 4WD L6-242 4.0L VIN M FI (1988)
Water Pump: Service and Repair
Removal
Fig. 3 Coolant Flow XJ
WARNING: DO NOT remove the cylinder block drain plugs or loosen the radiator draincock with the system hot and under pressure. Serious
burns from the coolant can occur.
NOTE: DO NOT WASTE reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
REMOVAL
CAUTION: If the water pump is replaced because of mechanical damage, the fan blades and viscous fan drive should also be inspected. These
components could have been damaged due to excessive vibration.
NOTE:
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The water pump can be removed without discharging the air conditioning system (if equipped).
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The water pump impeller is pressed on the rear of the pump shaft and bearing assembly. The water pump is serviced only as a complete
assembly.