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Connecting the Jumper Cables
WARNING
Do not attach the cables to fuel lines,
engine rocker covers, the intake
manifold or electrical components as
grounding points. Stay clear of moving parts.
To avoid reverse polarity connections, make
sure that you correctly identify the positive
(+) and negative (-) terminals on both the
disabled and booster vehicles before
connecting the cables.
Note: In the illustration, the bottom vehicle
represents the booster vehicle.
4
2
1
3
E142664
1. Connect the positive (+) jumper cable to
the positive (+) terminal of the discharged
battery.
2. Connect the other end of the positive (+)
cable to the positive (+) terminal of the
assisting battery.
3. Connect the negative (-) cable to the
negative (-) terminal of the assisting
battery.
4. Make the final connection of the negative
(-) cable to an exposed metal part of the
stalled vehicle's engine, or connect the
negative (-) cable to a ground connection
point if available.
WARNING
Do not connect the end of the second
cable to the negative (-) terminal of the
battery to be jumped. A spark may cause an
explosion of the gases that surround the
battery.
Jump Starting
1. Start the engine of the booster vehicle
and rev the engine moderately, or press
the accelerator gently to keep your
engine speed between 2000 and 3000
rpms, as shown in your tachometer.
2. Start the engine of the disabled vehicle.
250
MKZ (), enUSA
Roadside Emergencies
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