Dodge Durango (HB). Manual - part 1146

The pump (1) is connected to the steering gear (2) via
the pressure hose (3) and the return hoses (4). The
pump shaft has a pressed-on pulley (6) that is belt
driven by the crankshaft pulley.

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PUMP

The power steering oil cooler (5) is mounted to the
front lower part of the radiator (7).

NOTE: Power steering pumps are not interchange-
able with pumps installed on other vehicles.

OPERATION

Hydraulic pressure is provided for the power steering
gear by the belt driven power steering pump. The
power steering pumps are constant flow rate and dis-
placement, vane-type pumps.

DIAGNOSIS AND TESTING

PUMP LEAKAGE

The pump is serviced as an assembly and should not be disassembled. Plastic pump reservoirs can be replace and
the reservoir O-ring.

Check for leaks in the following areas:

•

Pump shaft seal behind the pulley

•

Pump to reservoir O-ring

•

Reservoir cap

•

Pressure and return lines

•

Flow control valve fitting

PUMP

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STANDARD PROCEDURE

POWER STEERING PUMP - INITIAL OPERATION

WARNING: THE FLUID LEVEL SHOULD BE CHECKED WITH ENGINE OFF TO PREVENT INJURY FROM MOV-
ING COMPONENTS.

CAUTION: MOPAR

ATF+4 is to be used in the power steering system. No other power steering or auto-

matic transmission fluid is to be used in the system. Damage may result to the power steering pump and
system if any other fluid is used, and do not overfill.

Wipe filler cap clean, then check the fluid level. The dipstick should indicate COLD when the fluid is at normal
temperature.

1. Turn steering wheel all the way to the left

2. Fill the pump fluid reservoir to the proper level and let the fluid settle for at least two (2) minutes.

3. Raise the front wheels off the ground.

4. Slowly turn the steering wheel lock-to-lock 20 times with the engine off while checking the fluid level.

NOTE: Vehicles with long return lines or oil coolers turn wheel 40 times.

5. Start the engine. With the engine idling maintain the fluid level.

6. Lower the front wheels and let the engine idle for two minutes.

7. Turn the steering wheel in both direction and verify power assist and quiet operation of the pump.

If the fluid is extremely foamy or milky looking, allow the vehicle to stand a few minutes and repeat the procedure.

CAUTION: Do not run a vehicle with foamy fluid for an extended period. This may cause pump damage.

REMOVAL

1. Drain and siphon the power steering fluid from the

pump.

2. Remove the serpentine drive belt, (Refer to 7 -

COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).

3. Remove the reservoir return hose at the reservoir.

4. Remove the pressure hose from the pump.

5. Remove 3 pump mounting bolts through pulley

access holes.

6. Remove the pump from the engine.

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PUMP

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