GM Service Manual Online
For 1990-2009 cars only

Object Number: 244884  Size: SH

The power steering pump is a vane-type design. The submerged pump has a housing and internal parts that are inside the reservoir and operate submerged in oil.

There are 2 bore openings at the rear of the pump housing. The larger opening contains the following components:

    • The cam ring
    • The pressure plate
    • The thrust plate
    • The rotor
    • The van assembly
    • The end plate

The smaller opening contains the following components

    • The pressure hose union
    • The flow control valve
    • The spring

The flow control orifice is part of the pressure hose union. The pressure relief valve inside the flow control valve limits the pump pressure.