Correct Fluid Level; High Fluid Level; Adjusting Automatic Transmission Fluid Levels - Ford 1999 Explorer Owner's Manual

Maintenance and care
5. Remove the dipstick, wiping it clean with a clean, dry lint free rag.
6. Install the dipstick making sure it is fully seated in the filler tube.
7. Remove the dipstick and inspect the fluid level. The fluid should be in
the designated areas for normal and room temperature.

Correct fluid level

The transmission fluid should be checked at normal operating
temperatures 66°C-77°C (150°F-170°F) on a level surface. The normal
operating temperature can be reached after approximately 30 km (20
miles) of driving. However, you can check the fluid without driving if the
outside temperatures are above 10°C (50°F). If fluid is added at this
time, an overfill condition could result when the vehicle reaches normal
operating temperature.
The transmission fluid should be in
this range if at normal operating
temperature (66°C-77°C
[150°F-170°F]).
The transmission fluid should be in
this range if at room temperature
(10°C-35°C [50°F-95°F]).

High fluid level

Fluid levels above the safe range
may result in transmission failure.
An overfill condition of transmission
fluid may cause shift and/or
engagement concerns and/or
possible damage.
High fluid levels can be caused by
an overheating condition.
Adjusting automatic
transmission fluid levels
Before adding any fluid, make sure
the correct type is used. The type of
fluid used is normally indicated on the dipstick and/or dipstick handle
and also in the Lubricant specifications section in the Capacities and
specifications chapter.
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ADD COLD HOT
ADD COLD HOT
ADD COLD HOT
DO NOT ADD
DO NOT ADD
DO NOT ADD