Dodge 2000 DURANGO Service Manual page 777

DN
POWER STEERING . . . . . . . . . . . . . . . . . . . . . . . . . 1
POWER STEERING PUMP . . . . . . . . . . . . . . . . . . . 6
DESCRIPTION AND OPERATION
STEERING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
POWER STEERING SYSTEM . . . . . . . . . . . . . . . . 2
DESCRIPTION AND OPERATION
STEERING SYSTEM
DESCRIPTION
Power steering systems consist of:
• Steering column
• Rack and pinion steering gear
• Belt driven hydraulic steering pump
• Pump pressure and return hoses
• Oil Cooler
OPERATION
The steering column shaft is attached to the gear
pinion. The rotation of the pinion moves the gear
rack from side-to-side. This lateral action of the rack
pushes and pulls the tie rods to change the direction
of the front wheels.
Power assist is provided by an engine mounted
hydraulic pump, (Fig. 1) and (Fig. 2) the pump sup-
plies hydraulic fluid pressure to the steering gear.
Some vehicles are equipped with an oil cooler.
STEERING
TABLE OF CONTENTS
page
RACK & PINION STEERING GEAR . . . . . . . . . . . . 11
STEERING COLUMN . . . . . . . . . . . . . . . . . . . . . . . 15
POWER STEERING
TABLE OF CONTENTS
page
POWER STEERING FLOW AND PRESSURE . . . . . 4
Fig. 1 Steering Pump, Gear And Oil Cooler - 5.2L &
1 – HYDRAULIC PUMP
2 – RACK AND PINION GEAR
3 – OIL COOLER
STEERING 19 - 1
page
page
5.9L