Flushing Power Steering System

WARNING: Do not mix oil types. Any mixture or any unapproved oil could lead to seal deterioration and leaks. A leak could ultimately cause loss of fluid, which could result in a power steering assist.

Remove the fuse pump relay located in the battery junction box to disable the vehicle from starting. See Fig 1-Fig 4 .

Fig 1: Locating Engine Compartment Electrical Components
Courtesy of FORD MOTOR CO.

Fig 2: Identifying Battery Junction Box Components
Courtesy of FORD MOTOR CO.

Fig 3: Battery Junction Box Legend (1 Of 2)
Courtesy of FORD MOTOR CO.

Fig 4: Battery Junction Box Legend (2 Of 2)
Courtesy of FORD MOTOR CO.
Compress and move the hose clamp. Disconnect the power steering return hose and plug the fitting into the reservoir. See Fig 5.
Attach an extension hose between the power steering hose and an empty container.
Raise the front wheels off the floor.

NOTE: Use Motorcraft MERCON Multi-Purpose (ATF) Transmission Fluid XT-2-QDX meeting Ford specification MERCON or equivalent.

Fill the power steering reservoir.

CAUTION: Do not operate the starter motor for more than 10 seconds at a time. Damage to the starter motor could result.

Turn the steering wheel from stop-to-stop while cranking the engine. Refill the power steering pump as necessary until the fluid exiting the extension hose is clear.
Lower the vehicle.
Remove the extension hose and connect the power steering return hose to the power steering pump reservoir. Remove the plug and connect the power steering return hose. Compress and move the clamp into place. See Fig 5.

Fig 5: Identifying Power Steering Reservoir Return Hose & Clamp
Courtesy of FORD MOTOR CO.

CAUTION: Do not overfill the power steering fluid reservoir.

Fill the power steering fluid reservoir to the appropriate level.
Install the fuel pump relay.

CAUTION: Do not hold at the stop for more than five seconds; damage to the pump can occur.

Start the engine and turn the steering wheel from stop-to-stop.
If power steering is noisy and accompanied by evidence of aerated fluid, it will be necessary to purge the power steering system. See PURGING SYSTEM OF AIR . Check the power steering fluid level.
Clear any Diagnostic Trouble Codes (DTCs) that may be stored in the PCM. See 2000 SELF-DIAGNOSTICS -- EEC-V (GASOLINE) or 2001 SELF-DIAGNOSTICS -- EEC-V -- CNG & GASOLINE article under ENGINE PERFORMANCE .