Ford 1996 Aerostar Manual page 87

If your engine coolant overheats:
1. Pull off the road as soon as it is safely
possible.
2. Turn off the engine.
3. Let the engine cool. DO NOT REMOVE
COOLANT SYSTEM FILL CAP UNTIL
THE ENGINE IS COOL.
4. Check the coolant level following the
instructions on checking and adding coolant
to your engine. Refer to Engine coolant in the
Index. If you do not follow these
instructions, you or others could be injured.
Engine coolant temperature gauge
86