GM Service Manual Online
For 1990-2009 cars only

Checks

Actions

Check the intermediate shaft joints for improper installation

Adjust the intermediate shaft between the steering gear and the steering column.

Replace the coupling flange.

Check the power steering pump flow control valve for sticking and improper installation

Replace the power steering pump.

Check the power steering pump for insufficient pressure.

Replace the power steering pump.

Check the power steering pump for internal leaks.

Replace the power steering pump.

Check for a loose or a worn intermediate shaft.

Tighten the intermediate shaft. Replace the intermediate shaft, as needed.

Check the power steering pump serpentine belt tension.

Tighten the power steering serpentine belt.