User Manual - Page 442

For 2021 F-150 King Ranch®.

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Jump Starting the Vehicle
Connecting the Jumper Cables
WARNING: Do not connect the
negative jumper cable to any other part
of your vehicle. Use the ground point.
Note: If you are using a jump pack or
booster box, follow the manufacturer's
instructions.
E281345
1. Pull the red rubber boot backward.
Connect the positive (+) jumper cable
to the positive (+) terminal of the
discharged battery.
2. Connect the other end of the positive
(+) jumper cable to the positive (+)
terminal of the booster vehicle battery.
3. Connect the negative (-) jumper cable
to the negative (-) terminal of the
booster vehicle battery.
4. Make the final connection of the
negative (-) jumper cable to an
exposed metal part of the disabled
vehicle's engine, as shown in the
following illustration, away from the
battery and fuel injection system, or
connect the negative (-) jumper cable
to a ground connection point if
available.
E309115
Starting the Engine
1. Start the engine of the booster vehicle
and moderately rev the engine, or
gently press the accelerator to keep
the engine speed between 2000 and
3000 RPM, as shown in your
tachometer.
2. Start the engine of the disabled vehicle.
3. Once you start the disabled vehicle, run
both vehicle engines for an additional
three minutes before disconnecting the
jumper cables.
Removing the Jumper Cables
Remove the jumper cables in the reverse
order that they were connected.
Note: Do not switch the headlamps on
when disconnecting the cables. The peak
voltage could blow the bulbs.
439
F-150 (TFD) Canada/United States of America, enUSA, Edition date: 202007, First-Printing
Crash and Breakdown Information
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