Power Steering System Purging - CIII Power Steering Pump

Power Steering System Purging - CIII Power Steering Pump





Special Tool(s)

CAUTION: If the air is not purged from the power steering system correctly, premature power steering pump failure could result. This condition can occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that have had steering component repairs.





1. NOTE: A whine heard from the power steering pump may be caused by air in the system. The power steering purge procedure must be carried out prior to any component repair for which power steering noise complaints are accompanied by evidence of aerated fluid.

Remove the reservoir cap. Check the fluid.
2. Raise the front wheels off the floor.





3. Remove the cap and install the special tools.





4. Apply and maintain maximum vacuum.
5. Cycle the steering wheel fully to the left and right 10 times.
6. Release the vacuum and remove the vacuum pump

7. CAUTION: Do not overfill the reservoir.

Fill the reservoir.





8. Reinstall the vacuum pump. Apply and maintain maximum vacuum.
9. Start the engine

10. CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump could occur.

Cycle the steering wheel fully to the left and right 10 times
11. Stop the engine, release the vacuum, and remove the vacuum pump
12. Install the reservoir cap
13. Check for fluid leaks at all of the connections If the power steering fluid shows signs of air, repeat this procedure.