Draining the Power Steering System

Notice: Refer to Notice - Air In The Steering System

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.

- Replacing the power steering fluid is a two-stage process:
1. Flush the old fluid from the power steering system using new fluid.
2. Bleed the power steering system in order to remove any trapped air.
- You may also use this procedure in cold climates, where temperatures are -12°C (10°F) or colder:
1. Flush the system.
2. Change the fluid.
3. Use Low Temperature Climate Service Fluid, GM P/N 12345866 or the equivalent.