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Ford Truck
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2000
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Expedition 2WD V8-4.6L SOHC VIN W
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Ignition Coil
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Description and Operation
Ignition Coil: Description and Operation
The eight separate
ignition coils
:
^
change low voltage signals from the PCM to high voltage pulses
^
produce the high voltage pulses to the
spark plugs
.
^
are connected directly to each
spark plug
.