FORD 2009 Ranger v.1 - Manual (Page 253)

Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete. If
the vehicle is still not ready for I/M testing, the above driving cycle will
have to be repeated.
POWER STEERING FLUID
• 2.3L I4 engine
• 4.0L V6 engine
Check the power steering fluid. Refer to the scheduled maintenance
guide for the service interval schedules.
1. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
2. While the engine idles, turn the steering wheel left and right several
times.
3. Turn the engine off.
4. Check the fluid level in the reservoir. It should be between the MIN
and MAX lines. Do not add fluid if the level is within this range.
2009 Ranger (ran)
Owners Guide, 1st Printing
USA (fus)
Maintenance and Specifications
253