TheDieselStop.Com is a source of information, discussion, and help pertaining to the full line of Ford trucks, SUVs, and vans with International diesels. We cover everything from the original F-250s with 6.9L diesels all the way up to the newest 2008 Super-Duty trucks with the new 6.4L Power Stroke engine.
Part 1 of 6 in a series of articles outlining the Features, Descriptions, Unique Service Procedures, and General Diagnostics of the 6.0L DIT Power Stroke
From International Truck & Engine Corporation Publication
6.0 DIT Power Stroke
The 6.0L Power Stroke has been designed to meet the customers'
expectations of high horsepower and torque over a wide RPM range.
The 6.0L Power Stroke has also been designed to meet the tougher
emissions standards set by the government.
Meeting the more stringent customer and regulated demands are accomplished
in part by: VGT, digital injection, 4 valves per cylinder, and dual timing
Horsepower & Torque
The 6.0L Power Stroke creates 325 horsepower at 3300 RPM and 560 ft/lb of
torque at 2000 RPM.
Note: Torque has increased and occurs at lower engine RPM than previous
The 6.0L Power Stroke engine is a totally new engine design that will
provide improved performance and cleaner emissions.
The cylinders of the 6.0L Power Stroke are numbered from the front on
the right side 1, 3, 5, 7 and from the front on the left side 2, 4, 6, 8.
Engine Serial Number
The engine serial number is located on the left rear corner of the
The engine serial number identifies the engine family, build location, and
the sequential build number.
6.0 - is the engine family identifier.
HU2U - is a manufacturing designator.
6000173 - is a sequential build number.
Serial Number/FICM Calibration Label
Another location for the engine serial number is a label on the FICM (Fuel
Injection Control Module).
The engine serial number label also states the build location and build date
of the engine.
Another label on the FICM is the part number and the FICM calibration label.
States the horsepower rating for the engine, programmed in the powertrain
control module (PCM).
Depicts where the engine meets or exceeds emissions standards.
Shows the engine displacement.
Is affixed to the right hand valve cover behind the glow plug control
6.0L Power Stroke Features
The aluminum rocker arm carrier is mounted on top of the cylinder head and
is held in place by the cylinder head bolts.
The rocker arm carrier provides the mounting location for all of the rocker
The carrier also provides the connector pass through for the injector and
The 6.0L Power Stroke uses a four (4) valve per cylinder head design to
increase air flow and efficiency.
For identification, the exhaust valves are smaller than the intake valves.
The geartrain for the crankshaft, camshaft, and high pressure pump are
located in the rear of the engine under the rear cover.
This allows the high pressure pump to be mounted inside the engine and also
reduces geartrain noise.
Dual Mass Flywheel
The 6.0L Power Stroke uses two different flywheels for the manual
A dual-mass flywheel is used on the F-250/350 Super Duty truck.
The dual-mass flywheel can be identified by springs located around the
flywheel on the engine side.
It can also be identified by an extra ring of bolts on the transmission side
of the flywheel that holds the tow masses together.
From the side it can be identified by the separation between the clutch
surface and the starter ring.
Single Mass Flywheel
A single mass flywheel is used on the F-450/550 Super Duty trucks.
The single mass flywheel can be identified by the absence of the above
mentioned parts and that it is machined from one solid part.
Normal Heat Treatment Discoloration
The bearing surfaces on the crankshaft are induction hardened.
During the hardening process the surrounding areas of the crankshaft
discolor. This condition is normal.
Cooling System Features
The modular water pump can be serviced without disconnecting radiator hoses.
Both the glow plug sleeves and the injector sleeves are stainless steel.
Cooling System Flow: Front Cover
Coolant is drawn into the inlet of the front cover and then flows from the
water pump through the front cover to the crankcase.
Coolant is also routed from the front cover into the crankcase to a passage
that feeds the oil cooler.
Return coolant is directed to the thermostat by the front cover. If
the thermostat is open, coolant flows to the radiator to be cooled. If the
thermostat is closed, coolant is returned to the water pump via a bypass circuit
in the front cover.
Cooling System Flow: Back of Front Cover
Coolant is sealed via a silicon in metal one piece gasket and is directed
out of the front cover through three (3) passages.
Two of the passages route coolant to the crankcase to cool the cylinder
walls and cylinder heads.
The third passage routes coolant to the oil cooler via a passage in the
There are two passages for coolant to return from the crankcase into the
Cooling System Flow: Oil Cooler
Coolant is directed out of the crankcase and into the oil filter base at the
front of the engine.
The oil filter base routes the coolant into the front of the oil cooler then
toward the back of the engine.
Once the coolant has passed through the oil cooler it is directed out of the
oil filter base to the EGR cooler.
Note: There are weep holes in the oil filter base that allow coolant or
oil to seep outside of the filter base if an oil cooler seal is damaged.
Cooling System Flow: EGR Cooler
Coolant flows out of the filter base and into the EGR cooler through a tube
that directs the coolant to the back of the EGR cooler.
Coolant flows through the EGR cooler and removes heat from the exhaust
gasses before the exhaust arrives at the EGR valve.
Coolant exits the front of the EGR cooler and enters the coolant passage of
the intake manifold. The intake manifold directs the coolant back into the
Water Pump & Front Cover
The water pump, (hub and impeller) is mounted into the front cover which is
the housing for the water pump.
The water pump impeller pulls coolant from the center of the housing and
pushes it outward.
The water pump has a built-in reservoir to catch small amounts coolant that
during normal operation of the engine may seep past the seal.
Note: The water pump impeller may be damaged if dropped or hit by a hard
The 6.0L Power Stroke uses stainless steel injector sleeves to seal
coolant from the injector and to transfer heat from the injector to the coolant.
The injector sleeve is replaceable. See unique service procedures or
service manual for more details.
Glow Plug Sleeve
Glow plug sleeves are used to keep coolant from coming in direct contact
with the glow plugs and to seal coolant from the combustion chamber.
The glow plug sleeve is replaceable. See unique service procedures or
the service manual for more details.
Coolant Recovery Bottle
The coolant recovery bottle is located above the left valve cover.
One of the ports on the bottle is attached to the EGR cooler deaeration
port. If this port or hose is blocked, damage could occur to the EGR
'05-'06 High Idle by StuartV Great instructions how to modify an '05-'06 upfitter switch into an AIC.
6L Shootout Reports by Ralph Landau Results and conclusions from Ford 6.0 Liter Shootout held on 9/3/2005 in Nashville.
1999-2004 $10/$15 AIC by Rob Milnes Rob Milnes walks us through building and installing a $10-15 AIC on a late-model Power Stroke.
Ceramic Coating by Clive Buttrey Clive Buttrey (cbuttre835) explains do-it-yourself ceramic coating on his 1997 Power Stroke.