Service Procedure
A. Inspect Water Pump Identification Stamp1. Lift the vehicle on an appropriate hoist.
2. Locate the lower left water pump leg (Figure 1).
3. Read the water pump identification stamp on the side of the lower left water pump leg:
> If there is a "W" stamped on the left lower water pump leg, replace the water pump. Continue with Section B. Water Pump Replacement.
> If there is an "E" stamped on the left lower water pump leg, no further action is required. Lower the vehicle from the hoist and return the vehicle to the customer.
> If the stamping on the left lower water pump leg is unreadable, replace the water pump. Continue with Section B. Water Pump Replacement.
B. Replace Engine Water Pump
1. Lower the vehicle from the hoist.
2. Drain and save the coolant from the engine.
3. On Dakota Models only, remove the black plastic radiator support cover.
4. On Jeep Liberty Models only, use the following procedure to remove the combination washer solvent/coolant recovery bottle (Figure 2).
a. Remove the two screws on the top panel of the radiator support.
b. Remove the air cleaner housing to gain access to the combination washer solvent/coolant recovery bottle right side retaining screw (Figure 2).
c. Remove the right side combination washer solvent/coolant recovery bottle retaining screw.
d. Remove the battery and battery blanket from the vehicle to gain access to the combination washer solvent/coolant recovery bottle right side retaining screw (Figure 2).
e. Remove the horn from the vehicle to gain access to the combination washer solvent/coolant recovery bottle right side retaining screw.
f. Disconnect the windshield washer pump electrical connector.
g. Remove the left side lower combination washer solvent/coolant recovery bottle retaining screw.
h. Set the combination washer solvent/coolant recovery bottle aside.
5. On Jeep Liberty Models only, disconnect the electrical connector at the electric fan.
6. If equipped, disconnect the transmission oil cooler tube bracket on the left side of the radiator fan shroud.
7. Remove the fan shroud retaining bolts.
8. On Jeep Liberty Models only, carefully remove the fan shroud and electric fan from the vehicle as an assembly.
9. Using a spanner wrench (special tool 6958 and pins 8346) and fan wrench, remove the viscous fan assembly from the engine water pump pulley (Figure 3).
10. On Dakota Models only, remove the fan shroud.
11. Remove the serpentine belt from the engine.
12. Remove the right side idler pulley to gain access to one of the water pump retaining bolts (Figure 4).
13. Remove the 8 water pump retaining bolts.
CAUTION:
Note the bolt locations. Some of the bolts are longer than others.
14. Remove and discard the original water pump from the engine.
15. Carefully clean the water pump mounting surface on the engine water pump housing.
16. Place a drop of Mopar Lock & Seal onto the long water pump retaining bolt threads.
17. Place the new water pump into position on the engine.
18. Start all the water pump bolts and hand tighten.
19. Tighten the water pump retaining bolts to 40 ft. lbs. (54 N.m) in the sequence shown in Figure 5.
20. Install the right side idler pulley.
21. Install the serpentine belt as shown in Figure 6.
22. On Jeep Liberty Models only,
a. Install the viscous fan assembly.
b. Install the combination electric fan/radiator shroud assembly into position.
c. Connect the windshield washer pump electrical connector.
23. On Dakota Models only:
a. Install the fan and fan shroud assembly at the same time
b. Install the black plastic radiator support cover.
24. Install the shroud retaining screws.
25. If equipped, connect the transmission oil cooler tube support bracket to the radiator shroud.
26. If equipped, connect the electric cooling fan wiring to the cooling fan (Figure 7).
27. On Jeep Liberty Models only:
a. Place the combination washer solvent/coolant recovery bottle into position and install the retaining screws.
b. Install the horn.
c. Install the battery and battery blanket.
d. Install the air cleaner assembly.
28. Evacuate the air and fill the cooling system using Chrysler PSE Coolant Refiller # 85-15-0650 (or equivalent) and the following procedure:
NOTE:
Failure to evacuate the air from the cooling system may cause the engine to overheat.
a. Choose the appropriate adapter cone that will fit the vehicle's radiator filler neck (Figure 8).
b. Attach the adapter cone to the vacuum gauge (Figure 8).
c. Close the vacuum generator/venturi ball valve (Figure 8).
d. Attach an airline hose (80 psi/5.5 bar or higher) to the vacuum generator/venturi.
e. Position the adaptor cone/vacuum gauge assembly into the radiator filler neck (Figure 8).
f. Connect the vacuum generator/venture to the positioned adapter cone/vacuum gauge assembly (Figure 8).
g. Open the vacuum generator/venturi ball valve (Figure 8).
h. Allow the system to run until the vacuum gauge shows a good vacuum through the cooling system.
NOTE:
When a vacuum is created in the cooling system, it is normal for some of the cooling system hose to collapse. This condition will correct itself when coolant fills the cooling system.
i. Close the vacuum generator/venturi ball valve (Figure 8).
j. Disconnect the vacuum generator/venture and airline from the adaptor cone/vacuum gauge assembly.
k. Place the tool's suction hose into the coolant container (Figure 8).
l. Connect the tool's suction hose to the adapter cone/vacuum gauge assembly (Figure 9).
m. Open the suction hose ball valve to begin refilling the cooling system.
n. Once the system is full, close the suction hose's ball valve and remove the suction hose from the adapter cone/vacuum gauge assembly.
o. Remove the adapter cone/vacuum gauge assembly from the radiator fill neck.
p. Top off the radiator and coolant recovery bottle as required.
29. Start the engine and check for coolant leaks.