Toyota
Dodge Durango
 Service Manual
Steering » Power steering
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 supplies hydraulic fluid pressure to the steering gear.

Some vehicles are equipped with an oil cooler.

Fig. 1 Steering Pump, Gear And Oil Cooler - 5.2L & 5.9L Fig. 1 Steering Pump, Gear And Oil Cooler - 5.2L & 5.9L

1 - HYDRAULIC PUMP

2 - RACK AND PINION GEAR

3 - OIL COOLER

Fig. 2 Steering Pump, Gear And Oil Cooler - 4.7L Fig. 2 Steering Pump, Gear And Oil Cooler - 4.7L

1 - HYDRAULIC PUMP

2 - RACK AND PINION GEAR

3 - OIL COOLER

    More about «Power steering»:

    Description and operation

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