FORD 2010 E-450 v.1 - Manual (Page 296)

POWER STEERING FLUID
Check the power steering fluid.
Refer to the scheduled maintenance
guide for more information.
Check the fluid level when it is at ambient temperature, 20°-80°F
(-7°-25°C):
1. Check the fluid level on the dipstick. It should be between the arrows
in the FULL COLD range. Do not add fluid if the level is within this
range.
2. If the fluid level is low, start the engine.
3. While the engine idles, turn the steering wheel left and right several
times.
4. Turn the engine off.
WARNING: For E-350 and E-450 vehicles with the Hydro-Boost
Brake System, do not press the brake pedal after the engine has
been turned off. Pressing the brake pedal after the engine has been
turned off will give a false power steering fluid level reading.
5. Recheck the fluid level on the dipstick. Do not add fluid if the level is
between the arrows in the FULL COLD range.
FULL COLD
Maintenance and Specifications
296
2010 Econoline (eco)
Owners Guide, 1st Printing
USA (fus)