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POWER STEERING FLUID
Check the power steering fluid. Refer to scheduled maintenance
information. If adding fluid is necessary, use only MERCON ATF.
• Gasoline engine shown; diesel
engine similar. Refer to
Identifying components in the
engine compartment in the
diesel supplement.
Check the fluid level when it is at ambient temperature, 20°F–80°F
(-7°C–25°C):
1. Check the fluid level in the reservoir. It should be between the MIN
and MAX range. Do not add fluid if the level is within this range.
2. If the fluid level is low. Add fluid to bring fluid level up to be between
the MIN and MAX range.
3. Start the engine.
4. While the engine idles, turn the steering wheel left and right several
times.
5. Turn the engine off.
6. Recheck the fluid level in the reservoir. Do not add fluid if the level is
between the MIN and MAX range.
7. If the fluid is low, add fluid in small amounts, continuously checking
the level until it is between the MIN and MAX range. Refer to
Maintenance products specifications and capacities in this chapter for
the proper fluid type. Be sure to put the cap back on the reservoir.
Maintenance and Specifications
390
2011 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)