Steering: Description and Operation
Power SteeringThe power steering system is a hydraulic assist to the mechanical linkage system and consists of the following:
^ CIII power steering pump.
^ Power steering fluid reservoir.
^ Steering gear.
^ Power steering fluid cooler.
^ High and low pressure power steering hoses.
Power Steering Pump
NOTE: On early build 4.6L and 5.4L engines there are four bolts mounting the power steering pump to the engine block. The fourth bolt on earlier builds may be discarded upon the replacement of the power steering pump.
The CIII power steering pump has the following features:
^ It is a belt-driven, vane-type, power steering pump.
^ It is mounted directly to the engine block by three bolts.
^ The power steering pump is replaced as an assembly.
^ An identification tag attached to the power steering pump indicates the model number and bar code. Refer to the identification tag when the pump replacement is required.
^ The power steering pump uses a quick connect fitting for the power steering pressure hose.
^ The power steering fluid reservoir is mounted on the LH side of the engine.
Steering Gear - All Except Motorhome:
Steering Gear
The steering gear has the following features:
^ It is a torsion-bar type hydraulic assisted system.
^ It reduces road shock and vibration.
^ It includes a rotary-style hydraulic valve.
^ It uses a dot matrix ID mark on the gear housing between the valve housing and the sector shaft housing cover.
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System View