Egr Throttle; Intake Manifold - Ford 6.0L POWER STROKE Service Procedures And General Diagnostics

A I R M A N A G E M E N T S Y S T E M

EGR Throttle

• All 2003.25 6.0L Power Stroke engines are
equipped with a throttle body.
• Some early versions also have a throttle
plate in the throttle body. Later versions will
retain the throttle body, but not the throttle
plate.
• The throttle was designed to assist with EGR
operation, but later was determined
unnecessary.
• The PCM software for controlling the throttle
body was not added and the plate was
removed.
• The throttle body may become operational
for the 2004 model year.
• Note: All engines have the wiring plugged
into the throttle body and position sensor
even if the throttle plate is not present.

Intake Manifold

• The intake manifold on the 6.0L Power
Stroke is made of aluminum and directs the
flow of air to the intake ports in the cylinder
heads
.
• The Intake manifold provides a path for
coolant from the EGR cooler to the front
cover.
• There is a passage for EGR gasses to go to
the EGR valve where they mix with
compressed intake air.
• The manifold absolute pressure sensor
(MAP) port and the intake air temperature 2
(IAT2) sensor are both mounted in the intake
manifold.
• The passage at the rear of the manifold is to
equalize pressure on both sides of the
manifold.
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THROTTLE PLATE
NO THROTTLE PLATE
INTAKE MANIFOLD
EGR COOLER
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80
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