Purging
Power Steering System Purging
Special Tool(s)
WARNING: Do not mix fluid types. Any mixture of an unapproved fluid could lead to seal deterioration and leaks. A leak could ultimately cause loss of fluid, which could result in a loss of power steering assist.
CAUTION: If the air is not purged from the power steering system correctly, pump failure could result. This condition can occur on pre-delivery vehicles with evidence of aerated fluid or on vehicles that had steering component repairs.
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 and after installation of any new power steering system components.
1. CAUTION: Do not overfill flee power steering fluid reservoir.
Remove the fluid reservoir cap and check the fluid.
^ Using the special tool, tightly insert the stopper into the fluid reservoir.
2. Raise the front wheels off the floor.
3. Using the special tool, apply and maintains maximum vacuum.
4. Cycle the steering Reel fully to the Left and right ten times.
5. Release the vacuum and remove the special tool.
6. CAUTION: Do not overfill the reservoir.
Fill the reservoir.
7. Start the engine.
8. Using the special tool, apply and maintain maximum vacuum.
9. 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 can occur.
Cycle the steering wheel fully to the left and right ten times.
10. Remove the special tool and install the fluid reservoir cap.
11. Lower the vehicle.
12. WARNING: Do not mix fluid types. Any mixture of an unapproved fluid could lead to seal deterioration and leaks. A leak could ultimately cause loss of fluid, which could result in a loss of power steering assist.
Check the fluid level and for leaks at all connections. If the power steering still shows signs of aeration, repeat this procedure.