Power Steering Fluid: Testing and Inspection

1. Position the vehicle on a level surface.
2. Start the engine. With the vehicle kept stationary, turn the steering wheel several times continuously to raise the fluid temperature from 50 to 60°C (122 to 140°F).
3. With the engine at idle, turn the steering wheel fully clockwise and counterclockwise several times.
4. Make sure there is no foaming or cloudiness in the reservoir fluid.
5. Stop the engine to check for a difference in fluid level between a stationary and a running engine.

NOTE:
1) If the fluid level varies 5 mm (0.2 inch) or more, bleed the system again.
2) If the fluid level suddenly rises after stopping the engine, insufficient bleeding is indicated.
3) Incomplete bleeding will produce a chattering sound in the pump and a noise in the flow control valve, decreasing durability of the pump.