GM Service Manual Online
For 1990-2009 cars only

The power steering pump is a multivaned hydraulic pump.

The serpentine accessory drive belt on the engine drives the power steering pump.

The power steering pump provides the hydraulic pressure to the power steering gear.

The power steering gear uses the hydraulic pressure to assist in steering the variable.

The power steering system uses a remote reservoir in order to make available more space in the engine compartment.