GM Service Manual Online
For 1990-2009 cars only

Rattle or Knock Noise in Steering Pump for Oldsmobile Bravada 2000

Problem

Action

The pump pulley is loose.

Replace the pump pulley. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The pump vanes are sticking in the rotor slots.

Remove the following obstructions in order to loosen the vanes:

    • Burrs
    • Varnish
    • Dirt

The pressure hose is touching other components on the vehicle.

Adjust the hose position.