Power steering hydraulic system — bleeding (Chevrolet Trailblazer 1)

1. After any procedure that involved disconnecting hydraulic lines, it is necessary to bleed the system to remove air from it and restore normal operation of the steering system.

2. With the wheels in a straight-ahead position, check the power steering fluid level and, if necessary, top it up so that the level reaches the "Cold" mark on the dipstick.

3. Start the engine and let it idle at high speed. Recheck the fluid level and, if necessary, raise it to the "Cold" mark on the dipstick.

4. Bleed the system by turning the wheels from side to side several times. Do not turn the wheels from one extreme position to the other. This will force air out of the system. Check the level periodically and add fluid to the reservoir if necessary.

5. After removing air from the system, set the wheels in a straight line. After a few minutes, turn off the engine. Recheck the fluid level.

6. During the test drive, check that the steering operates normally and that there is no abnormal noise.

7. Make sure the fluid level reaches the "Hot" mark on the dipstick when the engine is warmed up to normal operating temperature. Add fluid if necessary (see chapter 1).