To start with my power steering pump was making a little noise and also had bubbles in the resevoir so i put a new power steering pump on it.not a rebuilt one. when i started it up i still have the bubbles in it.. and it still makes a little noise. what can i do to remedy it. here is what i have done so far.jacked the front wheels off ground and turned it right to left 60 or 70 times without the engine running and then i started my engine, left the wheels off the ground and turned it right to left 30 to 40 times. 80% of the noise went out of the pump after that but i still have rolling bubbles in the resevoir. this car only has 65,000 miles on it . it has good tight steering with no problem there and thereare no oil leaks on the rack and pinion. what should i try next? Henry

Section 11-00: Steering System-Service 1999 Taurus, Sable Workshop Manual SERVICE PROCEDURES Purging Power Steering System of Air 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.

1. Check and fill pump reservoir to dipstick full cold or remote reservoir center mark.
   

1. Disable ignition by removing Fuse 10 in the fuse junction panel.
   

1. Crank engine 30 seconds, check fluid level and add if required.
   

1. NOTE: Do not hold steering wheel on stops.
   
   Crank engine 30 seconds while cycling the steering wheel lock to lock.
   

1. Check fluid level and add fluid if required.
   

1. Tightly insert the rubber stopper of the air evacuator assembly into pump reservoir.
   

1. Reinstall Fuse 10 used to disable ignition and start vehicle.
   

1. Apply 20-25 in-Hg (85-88 kPa) maximum vacuum for minimum of three minutes at idle; maintain maximum vacuum with vacuum source.
   

1. Release vacuum and remove vacuum source.
   

1. Add fluid to full warm or reservoir center mark.
   

1. Reinstall vacuum source and apply 20-25 in-Hg (85-88 kPa) vacuum.
   

1. NOTE: Do not hold steering wheel on stops.
   
   Cycle steering wheel from lock to lock every 30 seconds for approximately 5 minutes.
   

1. Shut engine off, release vacuum and remove vacuum source.
   

1. Add Motorcraft MERCON Multi-Purpose (ATF) Transmission Fluid if necessary and install dipstick or reservoir cap.
   

1. NOTE: Do not hold steering wheel on stops.
   
   Start engine and cycle steering wheel from lock to lock every 30 seconds for approximately 5 minutes.
   

1. Check for oil leaks at all connections.
   

1. In severe cases it may be necessary to repeat air purge with vacuum source procedure.
   

1. Add Motorcraft MERCON® Multi-purpose (ATF) Transmission Fluid XT-2-QDX or MERCON® equivalent to approximately 2.5 cm (1 in) (make a mark) above the top of the supply line.
   

1. Tightly insert the rubber stopper of the air evacuator assembly into the pump reservoir.
   

1. Apply 85-88 kPa (20-25 in-Hg) maximum vacuum for a minimum of three minutes.
   

1. Add Motorcraft MERCON® Multi-purpose (ATF) Transmission Fluid XT-2-QDX or MERCON® equivalent until the level is at the marked point.
   

1. Repeat Steps 3 and 4 until the fluid level stabilizes.
   

1. Check reservoir level and add Motorcraft MERCON® Multi-purpose (ATF) Transmission Fluid XT-2-QDX or MERCON® equivalent to the FULL WARM (MAX) mark.
   

1. Install the number 10 fuse in the fuse junction panel. Start the engine.
   

1. NOTE: The front wheels must be off the floor during lock-to-lock rotation of the steering wheel.
   
   NOTE: Do not hold the steering wheel on stops.
   
   Reinstall the vacuum source and apply 85-88 kPa (20-25 in-Hg) maximum vacuum and cycle the steering wheel from lock-to-lock every thirty seconds for a minimum of 5 minutes.
   

1. Shut the engine off, release the vacuum and remove the vacuum source.
   

1. Add Motorcraft MERCON® Multi-purpose (ATF) Transmission Fluid XT-2-QDX or MERCON® equivalent to the FULL WARM (MAX) level. Install the dipstick or reservoir cap.
   

1. NOTE: Do not hold the steering wheel on stops.
   
   NOTE: In severe cases, it may be necessary to repeat air purge with vacuum source procedure.
   
   Start the engine and cycle the steering wheel from lock-to-lock every thirty seconds for approximately five minutes.
   

1. Lower the vehicle front end.
   

1. Check for oil leaks at all connections.