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Mercury Truck
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1999
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Mountaineer 2WD V6-4.0L VIN E
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Fuel Pump
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Description and Operation
Fuel Pump: Description and Operation
The
fuel pump
is controlled by the
Powertrain Control Module
(PCM)
which energizes the
fuel pump relay
. Electrical power to the pump is provided through the Inertia Fuel Shutoff
(IFS)
switch.