Power Steering System Purging
Special Tools
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.
- Remove the fluid reservoir cap and check the fluid.
- Using the special tool, tightly insert the stopper into the fluid reservoir.
- Raise the front wheels off the floor. For additional information, refer to JACKING & LIFTING .
- Using the special tool, apply and maintain maximum vacuum.
- Cycle the steering wheel fully to the left and right ten times.
- Release the vacuum and remove the special tool.
- Fill the reservoir.
- Start the engine.
- Using the special tool, apply and maintain maximum vacuum.
- Cycle the steering wheel fully to the left and right ten times.
- Remove the special tool and install the fluid reservoir cap.
- Lower the vehicle.
- Check the fluid level and for leaks at all connections. If the power steering still shows signs of aeration, repeat this procedure.
CAUTION:
Do not overfill the power steering fluid reservoir.
CAUTION:
Do not overfill the reservoir.
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.
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.