GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Vivant 🢒 Steering 🢒 Power Steering System 🢒 Power Rack and Pinion Steering Gear Bench Testing

Removal, Setup, and Testing Procedure

    Notice: Do not start the vehicle with any power steering gear inlet or outlet hoses disconnected. When disconnected, plug or cap all openings of components. Failure to do so could result in contamination or loss of power steering fluid and damage to the system.

    Important: Pressure checks or pressure and flow checks may also be conducted using this setup.

  1. Disconnect and remove the power steering gear. Refer to Steering Gear Replacement .
  2. Place the power steering gear on a bench next to the vehicle.
  3. Disconnect the pressure line at the point where the hose connects to the pipe. Extend this line to reach the power steering gear on the bench.
  4. Disconnect the return line from the power steering fluid reservoir. Extend this line to reach the power steering gear on the bench.
  5. Connect the power steering pipes to the power steering gear.
  6. Start the engine and allow it to idle for 10 seconds.
  7. Check the power steering fluid level.
  8. Start the engine and turn the rack and pinion stub shaft a full turn in each direction. Hold the shaft against each stop for 5 seconds.
  9. Inspect for possible leak points.

Installation Procedure
  1. Stop the engine.
  2. Disconnect the power steering pipes from the power steering gear.
  3. Remove the extensions and reconnect the pressure and return lines.
  4. Install and connect the power steering gear. Refer to Steering Gear Replacement .
  5. Start the engine and allow it to idle for 10 seconds.
  6. Check the power steering fluid level.