GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Regal 🢒 Steering 🢒 Power Steering System 🢒 Low Oil Pressure Due to Steering Pump

Low Oil Pressure Due to Steering Pump for Buick Regal 1998

Problem

Action

The control valve is stuck or inoperative.
  1. Clean the control valve. Refer to Power Steering Pump Flow Control Valve Replacement - Off Vehicle .
  2. Replace the control valve, as needed. Refer to Power Steering Pump Flow Control Valve Replacement - Off Vehicle .

The pump ring is worn.
  1. Inspect the pump ring. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Replace the pump ring, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The pressure plate is scored.
  1. Inspect the pressure plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Replace the pressure plate, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The thrust plate is scored.
  1. Inspect the thrust plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Replace the thrust plate, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The rotor is scored.
  1. Inspect the rotor. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Replace the rotor, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The pressure plate is broken.
  1. Clean the pressure plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Inspect the pressure plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  3. Replace the pressure plate, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The thrust plate is broken.
  1. Clean the thrust plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Inspect the thrust plate. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  3. Replace the thrust plate, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .

The vanes are sticking in the rotor slots.
  1. Clean the vanes. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  2. Inspect the vanes. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .
  3. Replace the vanes, as needed. Refer to Power Steering Pump Replacement or Power Steering Pump Replacement .