Mechanics

WATER PUMP

2004 Jeep Wrangler

Engine Cooling problem
2004 Jeep Wrangler 6 cyl Four Wheel Drive Automatic

How do I remove a water pump step by step
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Tkmcquade
July 18, 2009.




What DO you have for engine size?

BMRFIXIT
Jul 19, 2009.
6 cyl
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Tiny
Tkmcquade
Jul 19, 2009.
Disconnect negative battery cable at battery.
Drain the cooling system.
NOTE: The engine accessory drive belt must be removed prior to removing the fan.

Remove accessory drive belt.
The thermal viscous fan drive/fan blade assembly is attached (threaded) to water pump hub shaft. Remove fan blade/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. Using a suitable fan wrench loosen the fan drive.

Remove power steering pump.
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 SPECIAL CLAMP TOOL NUMBER 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.

Remove lower radiator hose from water pump. Remove heater hose from water pump fitting.
After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
Remove the four pump mounting bolts and remove pump from vehicles. Discard old gasket. Note that one of the four bolts is longer than the other bolts.

If pump is to be replaced, the heater hose fitting must be removed. Note position of fitting before removal.
INSTALLATION
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. Refer to the directions on the package.
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.
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 23 N.M (200 in. Lbs.) Torque. Rotate the shaft by hand to be sure it turns freely.
Connect the radiator and heater hoses to the water pump.
Install power steering pump.
Thread the fan and fan hub into the water pump hub shaft.
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. For appropriate belt routing. You may also refer to the Belt Routing Label in the vehicle engine compartment.

Install accessory drive belt.
Fill cooling system with coolant.
Connect battery cable to battery.
Start and warm the engine. Check for leaks.

BMRFIXIT
Jul 19, 2009.

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