Ford 6.0L POWER STROKE, Service Procedures And General Diagnostics

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F U E L M A N A G E M E N T S Y S T E M
Fuel Injector Features
Injector & O-rings
Injector Coils & Spool Valve
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92
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• The injector uses two (2) 48 volt 20 amp
coils to control a spool valve that directs oil
flow in and out of the injector.
• The injector coils are turned on for
approximately 800
µ
sec (micro second or
millionth of a second).
• No special tools are needed to remove the
injectors from their bore. The injector is
slowly removed from its bore by removing
the hold down clamp bolt.
• The injector has two (2) replaceable o-rings
on the outside of the body, one (1) internal
non-replaceable o-ring in the top of the
injector, and one (1) replaceable copper
combustion gasket on the tip of the injector.
• The injector’s two (2) coils have a single four
(4) pin connector that passes through the
rocker arm carrier.
• There is an open coil and a close coil on the
injector that move the spool valve from side
to side using magnetic force.
• The spool valve has two positions, when the
valve is in the open position it allows oil to
flow from the high pressure oil rail into the
injector.
• When the valve is in the closed position it
allows oil to drain from the injector back to
the crankcase.
• The total movement of the valve is only
.017”.
Fuel Injector Features
• Digital Valve
• 48 Volts
• 20 Amps/coil
• Short Coil On Times
• Self extracting hold down clamp
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INJECTOR COILS
INTERNAL O-RING
O-RINGS
HIGH PRESSURE OIL IN
COPPER GASKET
COIL
COIL
SPOOL VALVE