Operation CHARM: Car repair manuals for everyone.

Power Steering System Flushing

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





1. Remove the powertrain control module (PCM) relay to disable the vehicle.





2. Remove the reservoir from the reservoir bracket.





3. Remove the reservoir bracket.





4. Disconnect the power steering return hose. Plug the reservoir.
5. Attach an extension hose between the power steering return hose and an empty container.
6. Raise the front wheels off the floor.





7. Fill the reservoir.
- Use Motorcraft MERCON(r) Multi-Purpose ATF XT-2-QDX or equivalent MERCON(r) fluid.





8. CAUTION: Do not crank the engine for more than 15 seconds at a time. Allow the starter to cool for 1 minute before cranking again. Premature starter failure can occur.

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 could occur.

Turn the steering wheel from stop-to-stop while cranking the engine until the fluid exiting the power steering return hose is clear of all contamination and debris.
- Add Motorcraft MERCON(r) Multi-Purpose ATE XT-2-QDX or MERCON(r) equivalent as needed.
9. Lower the vehicle.





10. Disconnect the extension hose from the power steering return hose. Remove the plug. Attach the power steering return hose to the reservoir.





11. Install the reservoir bracket.





12. Install the reservoir to the bracket.





13. CAUTION: Do not overfill reservoir.

Fill the reservoir.
- Use Motorcraft MERCON(r) Multi-Purpose ATE XT-2-QDX or equivalent MERCON(r) fluid.





14. Install the powertrain control module (PCM) relay.





15. 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 could occur.

Start the engine and turn the steering wheel from stop-to-stop.





16. Note: If the power steering system is noisy and accompanied by evidence of aerated fluid it will be necessary to purge the power steering system.

Check the power steering fluid level.
- Use Motorcraft MERCON(r) Multi-Purpose ATF XT-2-QDX or equivalent MERCON(r) fluid.