skiprCH

Hi all!
My next project is to rebuild the power steering control valve. I think I can get through the rebuild OK (I hope) but my question is how do you bleed the system after it is put back together?
Any tips or suggestions on this project will be greatly appreciated!
Thanks, Walt

Soaring

They should be self-bleeding. Work the brake pedal several times and turn the steering wheel several times. If this does not work, you may have a faulty pump. Here is something further that may be of help.

After installing or servicing a power steering unit (rack and pinion, pump or gear), it will be necessary to purge the air out of the system. After the system has been pre-bled, purge the air out of the system as follows:

1. Idle the engine to bring the hydraulic steering fluid to operating temperature (60-80 C degrees, 140-170 F degrees).

2. Add fluid to bring system up to proper specifications.

3. With engine idling, cycle the steering wheel from side to side 10-15 times. Do not turn too quickly or hold in the lock position for more than 10 seconds.

4. Refill the power steering pump to proper specifications.

5. Check hydraulic fluid for color—if tan, light red, foamy or cloudy, air is still in the system. Repeat steps 3, 4 and 5 (for cars with rack and pinion, it may be helpful to let car sit for 30 minutes before repeating steps 3, 4 and 5).

If all the air is not removed from the system, an abnormal intermittent whine, moan or continuous growing noise may be heard form the power steering system. In some cases, a "shudder" may be felt in the steering wheel while driving the vehicle. If possibility of an air leak exists, check the entire system for leaks, repair as necessary and bleed the system.