For 1990-2009 cars only
- Turn the wheels all the way to the to the left and add the power steering fluid to the MIN mark on the fluid level indicator.
- Start the engine. With the engine running at fast idle, measure the fluid level. If necessary, add fluid to bring the level up to the MIN mark.
- Bleed the system by turning the wheels from side to side without reaching the stop at either end. Keep the fluid level at the MIN mark. The air must be eliminated from the fluid before normal steering action can be obtained.
- Return the wheels to the center position. Continue running the engine for 2-3 minutes.
- With the fluid at the normal operating temperature, add fluid to bring the level up to the MAX mark
- Road test the car and verify the steering functions normally and is free from noise.
Notice: If the power steering system has been serviced, an accurate fluid level reading cannot be obtained unless air is bled from the steering system. The air in the fluid may cause pump cavitation noise and may cause pump damage over a period of time.
Notice: When adding fluid or making a complete fluid change, always use a power steering fluid meeting GM Spec. No. 9985010 or equivalent. Fluid for cold climates is also available through GM Dealerships; refer to Specifications for further information. Failure to use the proper power steering fluid can cause power steering hose and seal damage, fluid leaks and pump failure.
