Ford 2002 Explorer Manual page 126

Roadside Emergencies
Only connect batteries with the
same nominal voltage (12 volts).
Use jump leads with insulated
clamps and sufficient cross section.
Do not disconnect the battery from
the vehicle's electrical system.
Suitable jump leads for this purpose
can be obtained from your dealer.
Note: (+) terminal is larger than
the (-) terminal.
Preparing to jump start your vehicle:
• Position the vehicles so they do not touch.
• Turn off all electrical equipment.
• Keep jumper cables away from moving parts (fan blades and belts).
1. Connect the positive (+) jumper
cable terminals from the dead
battery to the booster battery.
2. Connect the negative (-) jumper
cable terminal to the booster
battery.
3. Connect the jumper cable
terminal to a metal engine part (Do
not connect to the fuel rail).
Do not connect the end of
the second cable to the
negative (-) battery terminal of
the battery to be jumped. A spark
may cause an explosion of the
gases that surround the battery.
• Start the engine of the vehicle with the booster battery and run the
engine at medium speed.
• Start the engine of the vehicle with the dead battery.
• Turn the heater blower to HIGH.
Remove the jumper cables in the reverse order 3, 2, 1. Determine why
the battery went dead and correct the problem.
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