REMOVAL
3.7L
The water pump on 3.7L engines is bolted directly to the engine timing chain case cover.
1. Disconnect negative battery cable from battery.
2. Drain cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
WARNING: Constant tension hose clamps are used on most cooling system hoses. When removing or installing, use only tools designed for servicing this type of clamp. Snap-on clamp tool (number hpc-20) may be used for larger clamps. Always wear safety glasses when servicing constant tension clamps.
CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
3. Remove two fan shroud-to-radiator screws, Disconnect the coolant overflow hose.
4. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
5. Remove lower radiator hose clamp and remove lower hose at water pump.
6. Remove seven water pump mounting bolts and one stud bolt.
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.
7. Remove water pump and gasket. Discard gasket.
4.7L
The water pump on 4.7L engines is bolted directly to the engine timing chain case/cover.
A gasket is used as a seal between the water pump and timing chain case/cover.
The water pump can be removed without discharging the air conditioning system (if equipped).
1. Disconnect negative battery cable from battery.
2. Drain cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE). Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
WARNING: Constant tension hose clamps are used on most cooling system hoses. When removing or installing, use only tools designed for servicing this type of clamp, such as tool 6094. Always wear safety glasses when servicing constant tension clamps.
CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
3. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
4. Remove lower radiator hose clamp and remove lower hose at water pump.
5. Remove seven water pump mounting bolts and one stud bolt.
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.
6. Remove water pump and gasket. Discard gasket.
5.7L
1. Disconnect negative battery cable.
2. Drain coolant.
3. Remove serpentine belt.
4. Remove fan clutch assembly.
5. Remove coolant fill bottle.
6. Disconnect washer bottle wiring and hose.
7. Remove fan shroud assembly.
8. Remove A/C compressor and generator brace.
9. Remove idler pulleys.
10. Remove belt tensioner assembly.
11. Remove upper and lower radiator hoses.
12. Remove heater hoses.
13. Remove water pump mounting bolts and remove pump.
3.0L DIESEL
WARNING: Risk of injury to skin and eyes from scalding with hot coolant. Risk of poisoning from swallowing coolant. Do not open cooling system unless coolant temperature is below 90°C (194°F). Open cap slowly to release pressure. Store coolant in suitable and appropriately marked container. Wear protective gloves, clothes and eye wear.
1. Disconnect negative battery cable.
2. Remove engine cover (Refer to 9 - ENGINE - REMOVAL).
3. Drain engine coolant (Refer to 7 - COOLING/ENGINE/COOLANT - STANDARD PROCEDURE).
4. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
5. Disconnect coolant hoses at water pump.
6. Remove idler pulley.
7. Remove water pump and clean sealing surfaces .