FORD 2002 Explorer v.1 - Manual (Page 249)

Refer to your scheduled maintenance guide for scheduled intervals for
fluid checks and changes. Your transmission does not consume fluid.
However, the fluid level should be checked if the transmission is not
working properly, i.e., if the transmission slips or shifts slowly or if you
notice some sign of fluid leakage.
Transmission fluid should be checked and, if required, fluid
should be added by a qualified technician.
Checking and adding manual transmission fluid (if equipped)
1. Make sure the vehicle is on a
level surface or level hoist.
2. Clean the filler plug or dirt and
debris.
3. Remove the filler plug and
inspect the fluid level.
4. Fluid level should be at bottom of
the opening.
5. Add enough fluid through the
filler opening so that the fluid level
is at the bottom of the opening.
6. Install and tighten the fill plug
securely.
Maintenance and care
249