A constant displacement vane-type pump provides hydraulic
pressure and flow for the power steering system. The pump is located on the
engine and is belt driven by the serpentine belt through the power steering
pulley. The power steering reservoir is integrally mounted on the LS1 V8
system (engine mounted) and is remote-mounted (radiator support mounted)
on L36 V6 systems.
The power steering pump contains the following major components:
| • | The flow control spring |
The power steering system has a remote reservoir. The reservoir cap
has an attached fluid level indicator which shows the fluid level in the reservoir.
The bore at the front of the housing contains the flow control fitting.
The flow control fitting works with the flow control valve and spring in order
to limit the maximum flow of the pump. The pressure relief valve is located
inside of the flow control valve. The pressure relief valve limits the maximum
pump pressure.
The casting boss that runs across the housing holds the following components:
| • | The flow control spring |
