Ford 1996 Aerostar Manual page 291

5. If the power steering fluid is low, add fluid
in small amounts, continuously checking the
level, until you reach the FULL HOT range.
Do not overfill.
6. When you are finished, put the dipstick back
in and make sure that it fits snugly.
Use only a power steering fluid such as Ford
Power Steering Fluid Motorcraft MERCON
ATF.
If the power steering fluid is low, do not drive
your vehicle for a long period of time before
adding fluid. This can damage the power
steering pump.
If you check the power steering fluid when it is
cold, make sure that the fluid reaches the FULL
COLD range on the dipstick. The reading will
only be accurate if the fluid temperature is
approximately 50 to 85˚F (10 to 30˚C).
NOTE: Do not turn the steering wheel of your
vehicle with the engine off. It could
force power steering fluid out from the
reservoir cap or in extreme cases, it
could unseat the cap.
Fuses
Fuses and circuit breakers protect your vehicle's
electrical system from overloading. If electrical
parts in your vehicle are not working, the
system may have been overloaded and blown a
fuse or tripped a circuit breaker. Before you
replace or repair any electrical parts, check the
appropriate fuses or circuit breakers.
The following charts tell you which fuses or
circuit breakers protect each electrical part of
your vehicle. If a fuse blows or a circuit breaker
opens a circuit, all the parts of your vehicle that
use that circuit will not work.
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