Air Purge

NOTE: If the air is not purged from the power steering system correctly a second customer concern or pump failure could result. This condition can only occur on pre-delivery vehicles with evidence of aerated fluid or vehicles that have had steering component repair.

A whine noise heard from the power steering pump may be caused by air in the system. The following procedure must be performed whenever any of the following are performed:
- All power steering noise complaints with evidence of aerated fluid on pre-delivery vehicles only, prior to any component repair.
- After any power steering system component (for example, gear or hose) has been replaced and the noise is heard.