FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
:
Car repair manuals for everyone.
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Mercury
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1997
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Grand Marquis V8-4.6L VIN W
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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Relays and Modules - Fuel Delivery and Air Induction
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Fuel Pump Relay
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Description and Operation
Fuel Pump Relay: Description and Operation
The
fuel pump relay
supplies power to the fuel pump when the
Powertrain Control Module
(
PCM
)
grounds the relay during START and engine RUN conditions.