Volvo D13 User manual

SECTION 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 1
CONTENTS
1. VOLVO D13 ENGINE............................................................................................................................ 2
1.1 SYSTEM OVERVIEW........................................................................................................................... 2
1.2 ENGINE OVERVIEW ........................................................................................................................... 6
1.3 ENGINE OIL ...................................................................................................................................... 7
1.3.1 General.................................................................................................................................... 7
1.3.2 Oil Quality ................................................................................................................................ 8
1.3.3 Oil Change Intervals................................................................................................................ 8
1.3.4 Oil Filters ................................................................................................................................. 9
1.3.5 Synthetic Lubrication ............................................................................................................... 9
1.3.6 Oil Viscosity ............................................................................................................................. 9
1.3.7 Oil Additives............................................................................................................................. 9
1.3.8 Oil Consumption...................................................................................................................... 9
1.3.9 Oil Change............................................................................................................................. 10
1.3.10 Oil Filters Change.................................................................................................................. 10
1.3.11 Checking the Oil Level .......................................................................................................... 11
1.4 POWER PLANT ASSEMBLY REMOVAL................................................................................................ 11
1.5 POWER PLANT ASSY.INSTALLATION ................................................................................................ 14
1.6 ENGINE MOUNTS ............................................................................................................................ 14
2. ELECTRONIC FOOT PEDAL ASSEMBLY (EFPA) & THROTTLE POSITION SENSOR ................ 16
3. SPECIFICATIONS............................................................................................................................... 17
ILLUSTRATIONS
FIGURE 1: ENGINE SENSORS LOCATION............................................................................................................. 5
FIGURE 2: D13F ENGINE,ALTERNATOR SIDE (TYPICAL)....................................................................................... 6
FIGURE 3: D13F ENGINE,TURBO SIDE (TYPICAL) ................................................................................................ 7
FIGURE 4: D13F OIL FILTERS ............................................................................................................................ 9
FIGURE 5: OIL FILTER WRENCH ....................................................................................................................... 10
FIGURE 6: OIL FITER REPLACEMENT ................................................................................................................ 11
FIGURE 7: ENGINE OIL FILLING TUBE................................................................................................................ 11
FIGURE 8: ENGINE OIL LEVEL DIPSTICK ............................................................................................................ 11
FIGURE 9: BELT TENSIONER VALVE ................................................................................................................. 12
FIGURE 10: ENGINE COMPARTMENT H3COACHES (TYPICAL)............................................................................. 14
FIGURE 11: VOLVO ENGINE POWER PLANT CRADLE INSTALLATION..................................................................... 15
FIGURE 12: ELECTRONIC FOOT PEDAL ASSEMBLY ............................................................................................ 16

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 2
1. VOLVO D13 ENGINE
1.1 SYSTEM OVERVIEW
NOTE
The “Premium Tech Tool” (PTT) is the
preferred tool for performing diagnostic work.
Contact your local dealer for more information.
The Engine Management System (EMS)
controls many engine functions such as: fuel
timing and delivery, engine protection functions,
engine brake operation, EGR valve function and
the turbocharger nozzle function. The Engine
Electronic Control Unit (EECU) along with other
supporting control units and sensors are
responsible for monitoring and controlling these
functions. These control units communicate
through the J1939 high speed serial data line to
share data.
In addition to their control functions, the modules
have on-board diagnostic capabilities. The on-
board diagnostics are designed to detect faults
or abnormal conditions that are not within their
operating parameters. When the system detects
a fault or abnormal condition, the fault will be
logged in one or both of the modules’ memory.
The vehicle operator will be advised that a fault
has occurred by the illumination of a malfunction
indicator lamp and a message in the driver
information display, if equipped. The module
may initiate the engine shutdown procedure if
the system determines that the abnormal
condition could damage the engine. In some
situations, the system will enter the "limp home"
mode. Limp home mode allows continued
vehicle operation but, the system may substitute
a sensor or signal value that may result in
reduced engine performance.
Fault codes logged in the system memory, can
later be read to aid in diagnosing the fault.
These faults can be read via a diagnostic
computer or through the instrument cluster
display, if equipped. The “Premium Tech Tool”
(PTT) is the preferred tool for performing
diagnostic work. Using a diagnostic computer
(or PTT) connected to the Serial
Communication Port, expands the technicians
diagnostic capabilities with additional data and
tests.
For diagnostic software, contact your local
dealer.
The following is a list of engine sensors that
provide input to the EMS:
•Ambient Air Temperature Sensor
•Ambient Pressure sensor
•Boost Air Pressure (BAP) Sensor
•Camshaft Position (Engine Position) Sensor
•Crankshaft Position (Engine Speed) Sensor
•Differential Pressure DPF Sensor
•EGR Differential Pressure Sensor
•EGR Temperature Sensor
•Engine Coolant Level (ECL) Sensor
•Engine Coolant Temperature (ECT) Sensor
•Engine Oil Pressure (EOP) Sensor
•Engine Oil Level (EOL) Sensor
•Engine Oil Temperature (EOT) Sensor
•Exhaust Temperature Sensor (DPF
Sensors)
•Fuel Pressure Sensor
•Intake Air Temperature And Humidity (IATH)
Sensor
•Intake Manifold (Boost) Temperature Sensor
•Throttle Position (TP) Sensor
•Turbo Speed Sensor
•Variable Geometry Turbocharger (VGT)
Position Sensor
Sensors
Ambient Air Temperature Sensor
The Ambient Air Temperature Sensor is used to
detect the outside air temperature. The sensor
modifies a voltage signal from the ECM. The
modified signal returns to the ECM as the
ambient air temperature. The sensor uses a
thermistor that is sensitive to the change in
temperature. The electrical resistance of the
thermistor decreases as temperature increases.
The Ambient Air Temperature Sensor is located
in the front of the vehicle.
Ambient (Atmospheric) Pressure Sensor
The Ambient (Atmospheric) Pressure Sensor
contains a pressure sensitive diaphragm and an
electrical amplifier. Mechanical pressure applied
to the diaphragm causes the diaphragm to
deflect and the amplifier to produce an electrical
signal proportional to the deflection.

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PA1578 SECTION 01 REVISED AUGUST 2012 3
The Ambient (Atmospheric) Pressure Sensor is
built into the Engine Management System
(EMS) Module.
Camshaft Position Sensor
The Camshaft Position (Engine Position) Sensor
is located in the rear face of the timing gear
cover at the rear of the engine, near the bottom
of the valve cover. It uses magnetic induction to
generate a pulsed electrical signal. It senses the
passage of seven (7) timing bumps on the edge
of the camshaft dampener. Six of the holes
correspond to the phasing of the electronic unit
injectors, while the seventh hole indicates the
top dead center position.
Crankshaft Position (Engine Speed) Sensor
The Crankshaft Position (Engine Speed) Sensor
uses magnetic induction to generate a pulsed
electrical signal. Notches are machined into the
edge of the flywheel. When one of the notches
passes close to the sensor, electric pulses
result.
The Crankshaft Position (Engine Speed) Sensor
also indicates when the crankshaft is at the top
dead center position.
Differential Pressure DP Sensor
The differential pressure sensor is used for flow
measurement of the Diesel Particulate Filter
(DPF). This sensor has two pressure ports and
senses the difference in pressure between the
two ports. Measurement of the pressure before
and after the DPF is used to calculate diesel
filter regeneration.
The Differential Pressure DPF Sensor is located
on the side of the Diesel Particulate Filter (DPF).
EGR Differential Pressure Sensor
The EGR differential pressure sensor is used for
flow measurement of the Exhaust Gas
Recirculation (EGR) valve. This sensor has two
pressure ports and senses the difference in
pressure between the two ports. Measurement
of the pressure before and after the EGR valve
is used to calculate EGR flow.
The EGR Differential Pressure Sensor is located
on the left or right side of the engine.
EGR Temperature Sensor
The EGR temperature sensor detects exhaust
gas temperature for EGR system. The sensor
modifies a voltage signal from the control unit.
The modified signal returns to the control unit as
the exhaust temperature of the EGR system to
confirm EGR operation. The sensor uses a
thermistor that is sensitive to the change in
temperature.
The EGR Temperature Sensor is located near
the EGR valve.
Engine Coolant Level (ECL) Sensor
The Engine Coolant Level (ECL) Sensor is a
switch. If engine coolant level falls below a
calibrated point the contacts open and the driver
will be notified of the low coolant level.
The Engine Coolant Level (ECL) Sensor is
located in the cooling system reservoir tank.
Engine Coolant Temperature (ECT) Sensor
The Engine Coolant Temperature Sensor is
located at the front of the engine. The sensor will
indicate a high coolant temperature caused by
problems like radiator blockage, thermostat
failure, heavy load, or high ambient
temperatures. This sensor is also used for cold
start enhancement and for fan clutch
engagement.
Engine Oil Pressure (EOP) Sensor
The Engine Oil Pressure Sensor contains a
pressure sensitive diaphragm and a electrical
amplifier. Mechanical pressure applied to the
diaphragm causes the diaphragm to deflect and
the amplifier to produce an electrical signal
proportional to the deflection.
The Engine Oil Pressure Sensor is located on
the oil filter assembly. The sensor monitors
engine oil pressure to warn of lubrication system
failure.
Engine Oil Level (EOL) Sensor
The Engine Oil Level Sensor is located in the oil
pan.
Engine Oil Temperature (EOT) Sensor
The Engine Oil Temperature Sensor is a
thermistor whose resistance varies inversely to
temperature. The sensor has a negative
temperature coefficient, which means the sensor
resistance will decrease as the engine oil
temperature increases.
The Engine Oil Temperature Sensor is located
in the oil pan.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 4
Exhaust Temperature Sensor (DPF Sensors)
The exhaust gas temperature sensor detects
exhaust gas temperature for DPF protection as
well as DPF regeneration control. The sensor
modifies a voltage signal from the control unit.
The modified signal returns to the control unit as
the exhaust temperature at that specific location
of the exhaust. The sensor uses a thermistor
that is sensitive to the change in temperature.
The Exhaust Temperature Sensors are located in
the DPF assembly.
Fuel Pressure Sensor
The fuel pressure sensor contains a diaphragm
that senses fuel pressure. A pressure change
causes the diaphragm to flex, inducing a stress
or strain in the diaphragm. The resistor values in
the sensor change in proportion to the stress
applied to the diaphragm and produces an
electrical output.
The Fuel Pressure Sensor is located on top of
the fuel filter housing.
Intake Air Temperature and Humidity (IATH)
Sensor
The Intake Air Temperature and Humidity (IATH)
Sensor contains a thermistor and a capacitive
sensor. The resistance of the thermistor varies
inversely to temperature. The output of the
capacitive sensor increases as the humidity of
the surrounding air increases. By monitoring the
signals from both portions of the sensor, the
Engine Management System (EMS) Module
calculates the temperature and humidity of the
air passing through the air filter housing.
The Intake Air Temperature and Humidity (IATH)
Sensor is located in the air intake tube just
downstream from the air filter canister.
Intake Manifold (Boost) Temperature Sensor
The Intake Manifold (Boost) Temperature
Sensor is a thermistor whose resistance varies
inversely to temperature. The sensor has a
negative temperature coefficient, which means
the sensor resistance will decrease as the inlet
air temperature increases.
The Intake Manifold (Boost) Temperature
Sensor is located in the intake manifold.
Intake Manifold Pressure Sensor
The Intake Manifold Pressure Sensor contains a
pressure sensitive diaphragm and an electrical
amplifier. Mechanical pressure applied to the
diaphragm causes the diaphragm to deflect and
the amplifier to produce an electrical signal
proportional to the deflection.
The Intake Manifold Pressure Sensor is located
on the air inlet pipe before the intake manifold.
Throttle Position (TP) Sensor
The Throttle Position Sensor is a potentiometer
that is mechanically linked to the accelerator
pedal. A potentiometer is a variable resistor
whose resistance will change as the pedal is
pressed. As the resistance changes, the signal
voltage of the sensor changes indicating the
accelerator pedal position.
The Throttle Position Sensor is located above
the accelerator pedal. The sensor is designed to
improve the driver’s control by reducing
sensitivity to chassis motion. This sensor
provides the driver’s fuel request input to the
VECU.
Turbo Speed Sensor
The Turbo Speed Sensor informs the EMS of
the turbo shaft speed. The sensor does not read
from the vanes, but reads from the shaft. The
Engine Management System (EMS) Module
uses this signal in conjunction with the VGT
position sensor signal to control the speed of the
turbocharger and therefore optimize the intake
manifold pressure.
The Turbo Speed Sensor is mounted in the
center of the turbocharger.
Variable Geometry Turbocharger Smart
Remote Actuator (VGT SRA)
The Variable Geometry Turbocharger Smart
Remote Actuator (VGT SRA) takes the position
commands from the EMS, moves the nozzle of
the turbocharger to the desired position, and
performs all of the diagnostics and self checks
on the actuator.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 5
FIGURE 1: ENGINE SENSORS LOCATION
1 Fuel Pressure 8 Air Temperature
2 Crankcase Pressure 9 Humidity/Ambient Air Temperature
3 Oil Level/Temperature 10 Camshaft Speed
4 EGR Differential Pressure 11 Crankshaft Speed
5 EGR Temperature 12 Oil Pressure
6 Coolant Temperature 13 AFI Fuel Pressure
7 Boost Pressure

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 6
1.2 ENGINE OVERVIEW
NOTE
For additional information concerning Volvo D13 engine components or engine-related components,
consult Volvo Trucks Canada or Volvo Trucks North America Web Site under: Parts & Service. On
Volvo web site, you will find detailed service procedures for parts replacement, repair and
maintenance.
FIGURE 2: D13F ENGINE, ALTERNATOR SIDE (TYPICAL)
1. Venturi Pipe 8. Fuel Pump
2. EGR Mixing Chamber 9. Hand Primer
3. Intake Manifold 10. Fuel/Water Separator
4. Engine Electronic Control Unit (EECU) 11. Fuel Filter
5. Breather Tube 12. Crankcase Ventilator
6. Air Compressor 13. Fan/Coolant Pump Belt
7. Power Steering Pump

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 7
FIGURE 3: D13F ENGINE, TURBO SIDE (TYPICAL)
1. EGR Valve 8. Coolant Pump
2. Aftertreatment Fuel Injector 9. Oil Filters
3. Exhaust Manifold 10. EGR Cooler
4. Valve Cover 11. Oil Pan
5. Engine Preheater Element 12. Starter Motor
6. Thermostat Cover 13. Turbocharger
7. Belt Tensioner
1.3 ENGINE OIL
1.3.1 General
Keep the engine oil at the proper level and change it at the recommended intervals. Always replace the
oil filters at the same time as when the oil is changed.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 8
1.3.2 Oil Quality
Volvo North America recognizes engine oils that meet or exceed the standards given by American
Petroleum Institute (API) for the oil classifications listed in this manual. Only oils licensed to carry the API
symbol should be used. Lubricants meeting API standards have provided maximum engine life when
used together with the recommended oil and oil filter change intervals.
VDS-4 diesel engine oil is mandatory for use in all 2010 emission compliant Volvo engines. These
engines, which can be identified by the presence of an exhaust aftertreatment system using Selective
Catalytic Reduction (SCR), also require the use of Ultra Low Sulfur Diesel (ULSD) fuel. VDS-4 oils
exceed the new API service category CJ-4.
CAUTION
DO NOT add extra oil additives. Additives such as break-in oils, top oils, graphitizers, and friction-
reducing liquids are not necessary and can harm the engine.
1.3.3 Oil Change Intervals
The length of time an engine can operate before an oil change depends on the quality oil used, the type
of fuel used, fuel consumption, engine oil consumption, vehicle application, level of dust in the air, and
fuel consumption. The change intervals given in this manual are maximum intervals. If the vehicle is
operating in heavy-duty operation, dusty or off-road conditions, etc., reduce the intervals for more
frequent oil changes.
NOTE
Use the information in the table below to determine the operating condition and usage applicable to your
vehicle.
Engine Operating Condition Medium Heavy Severe
Total Fuel Consumption (mpg) More than 6 More than 4.7 More than 3.7
Total Fuel Consumption (L/100 KM) Less than 39 Less than 50 Less than 64
Engine Oil and Filter Change
Interval, miles (km) – 41 U.S. quarts (39L)
Oil capacity
35,000 (55 000) 25,000 (40 000) 15,000 (24 000)
NOTE: If idle time is greater than 25%, use the next lower drain interval.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 9
NOTE
Oil filters should always be changed when
changing the oil.
1.3.4 Oil Filters
There are three filters on the engine, one of
which is a bypass filter. This should be changed
at the same time as the full-flow filter(s).
CAUTION
Volvo branded oil filters are designed to
provide the proper level of filtration and
protection for Volvo engines. Filters that do
not meet the same stringent requirements
may void engine warranty.
FIGURE 4: D13F OIL FILTERS
1.3.5 Synthetic Lubrication
Synthetic oils are offered by some oil suppliers
as an alternative to the traditional, petroleum
based oils for engines. These oils may be used
in Volvo engines, provided they meet the quality
level VDS-4.
The use of synthetic oils does not permit the
extension of the recommended oil change
intervals.
1.3.6 Oil Viscosity
The viscosity grade defines the thickness of the
oil. The oil must be thin enough at low
temperatures for easy cold starts and thick
enough to protect at high temperatures. An oil is
not fully defined until both the API quality
classification and the viscosity grade are
specified.
Choose the viscosity grade for the typical
ambient temperature for the application.
Multigrade oils have a broad range that suit
operation in changing temperature.
Volvo North America recommends the
viscosities shown in the viscosity/temperature
table for Volvo engines.
1.3.7 Oil Additives
CAUTION
Extra oil additives must never be added to
any engine oil used. Additives such as break-
in oils, top oils, graphitizers, and friction
reducing liquids are not necessary and may
even harm the engine.
Using oils to the quality standards
recommended in this manual makes the use of
extra oil additives unnecessary, as these oils
already contain a balanced treatment of
additives.
1.3.8 Oil Consumption
Once the engine is stopped, check the oil level
daily. If the engine has just been stopped and it
is warm, wait approximately five minutes to allow
the oil to drain back to the oil pan before
checking. Add oil as necessary.
CAUTION
DO NOT overfill engine with oil.
All diesel engines are designed to consume
some oil, so it is normal to add oil periodically.
An engine used in heavy-duty operation will
consume more oil than one in normal operation.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 10
1.3.9 Oil Change
WARNING
A hot engine or engine oil can be dangerous.
Serious burns can result from contact with a
hot engine or oil. Take precautions when
draining the oil. Wear gloves or let the engine
cool down before draining.
WARNING
When draining the oil, use the proper tools
and keep away as far as possible. Raise the
elbow so the forearm is parallel to the ground
to prevent oil running down the arm, causing
burns.
CAUTION
Always dispose of all lubricants (motor oil,
coolant, gear box oils, etc) and filters
according to Federal or local regulations.
Used oil disposed of in nature or waterways
contaminates our drinking water and kills
wildlife.
WARNING
Prolonged contact with used engine oil may
be harmful. Use rubber gloves when handling
used oil. Wash skin thoroughly if it comes in
contact with used oil.
It is important to drain as much oil as possible.
Try to change oil immediately after driving, when
the oil is warm. Always replace the oil filters
when changing the oil.
Component Capacity (L)
Oil pan 24 min - 32 max
Engine block (remaining oil) 1
Filters (3) 6
Total oil fill (empty) 39
NOTE
Since about 1 liter of oil remains in the engine
after draining, approximately 38 liters will be
needed for a complete oil change.
1.3.10 Oil Filters Change
WARNING
Hot oil can cause severe burns. DO NOT
allow hot oil to contact the skin. When
changing oil, wear protective gloves.
CAUTION
Volvo-branded oil filters are designed to
provide the proper level of filtration and
protection for Volvo engines. Filters that do
not meet the same stringent requirements
may cause unsatisfactory results.
•Clean around the oil filter housing and
remove the filters using the oil filter
wrench or the oil filter socket.
FIGURE 5: OIL FILTER WRENCH
•Prefill the new oil filters with approved
engine oil. Also, lubricate the filter gaskets
with engine oil (1). Hand tighten the oil
filters until they contact the sealing surface
of the oil filter housing (2). Manually
tighten the oil filters an additional ¾ to 1
full turn (3).

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 11
FIGURE 6: OIL FITER REPLACEMENT
•Start the engine and check for leaks
around the oil filter housing and filters.
•Check the oil level. Add approved engine
oil to the recommended level, if
necessary. Do not overfill.
1.3.11 Checking the Oil Level
Ensure that the vehicle is parked on level
ground before checking the oil level. Wait five
minutes after shutting off the engine and then
proceed with checking the oil.
CAUTION
DO NOT let the oil level fall below the marking
on the dipstick. DO NOT overfill so the level is
above the upper marking on the dipstick. This
could lead to excessive oil temperature and/or
poor crankcase breather performance.Add oil
through the oil filler pipe as required in order
to maintain level within the safe range.
FIGURE 7: ENGINE OIL FILLING TUBE
FIGURE 8: ENGINE OIL LEVEL DIPSTICK
1.4 POWER PLANT ASSEMBLY REMOVAL
To access the engine or engine-related
components, the vehicle power plant assembly
must be removed as a whole unit by means of a
slide-out cradle. The power plant assembly
includes the engine, transmission (including
retarder if so equipped), air compressor,
alternator and transmission oil cooler.
Remove the power plant assembly as follows:
CAUTION
Tag hoses and cables for identification before
disconnecting in order to facilitate reinstallation.
Plug all openings to prevent dirt from entering
the system.
NOTE
No parts within the EECU are serviceable. If
found defective, replace the EECU as a unit.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 12
•Preparation
1. Close the heater lines shut-off valves.
2. Disconnect the battery or batteries from the
starting system by removing one or both of
the battery cables from each battery system.
With the electrical circuit disrupted,
accidental contact with the starter button will
not produce an engine start.
WARNING
Due to the heavy load of the rear bumper
assembly, it must be adequately supported
before attempting to remove it.
3. Remove the rear bumper assembly from the
vehicle. Refer to Section 18 BODY, under
"Rear Bumper Removal".
4. If applicable, disconnect the block heater
connector located near the EGR mixing
chamber.
FIGURE 9: BELT TENSIONER VALVE 12200
5. Locate the A/C compressor belt tensioner
pressure releasing valve (Fig. 9). Turn
pressure releasing valve handle
counterclockwise in order to release pressure
in belt-tensioner air bellows and loosen belt.
Remove the A/C compressor belt.
6. To release all pressure from the air system.
Refer to Section 12, BRAKES & AIR
SYSTEM for instructions.
7. Disconnect and remove the engine-air intake
duct mounted between air cleaner housing
and turbocharger inlet.
CAUTION
To avoid damage to turbocharger, cover the
turbocharger inlet opening to prevent foreign
material from entering.
8. Disconnect and remove the air intake duct
mounted between the air cooler outlet and
the engine intake.
9. Disconnect and remove the air intake duct
mounted between the turbocharger outlet
and the air cooler inlet.
10.Disconnect and remove section of coolant
pipe assembly mounted between the radiator
outlet and the water pump inlet.
11.Disconnect and remove a section of coolant
pipe assembly mounted between the
thermostat housing and the radiator inlet, if
applicable.
12.Disconnect the electric fan-clutch connector
located near the cooling fan right angle
gearbox.
13.Disconnect the cooling fan drive shaft.
CAUTION
To avoid damage to cooling fan right angle
gearbox, make sure the power plant cradle
clears the gearbox when pulling the engine out.
14.Disconnect surge tank hoses connected to
the thermostat housing, the pump inlet and to
the transmission oil cooler.
15.Disconnect and remove the exhaust pipe
mounted between the flexible coupling and
the pipe going to the Aftertreatment Device
(ATD). If necessary, refer to Section 04
EXHAUST SYSTEM under “Muffler Removal
and Installation".
CAUTION
To avoid damage to turbocharger, cover the
turbocharger outlet opening to prevent foreign
material from entering.
16.Remove the power steering pump.

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PA1578 SECTION 01 REVISED AUGUST 2012 13
17.Close engine fuel supply shutoff valve on
primary fuel filter or Fuel Pro. Disconnect the
fuel line located above fuel filters and
connected to inlet port. On vehicles equipped
with the optional fuel filter/water separator,
disconnect the connector and remove cable
ties from cradle.
•With Vehicle Raised
18. Using the quick-connect drain hose, drain
the engine cooling system. Refer to Section
05 COOLING under "Draining Cooling System".
19. From under the vehicle, disconnect the
propeller shaft as detailed in Section 09,
under heading "Propeller Shaft Removal".
20.On vehicles equipped with an automatic
transmission provided with a hydraulic output
retarder, disconnect steel-braided airline from
pressure regulator output. The pressure
regulator is mounted in the upper section of
engine compartment backwall and is
accessible through the engine compartment
R.H. side door.
21. Remove the retaining bolts, washers and
nuts securing the power plant cradle to the
vehicle rear subframe.
22. Disconnect transmission harness from
transmission housing.
•With Vehicle Lowered
23.Disconnect the air compressor discharge,
governor steel-braided airlines and manual
filling airlines from compressor. Remove
retaining clips.
24.Disconnect the hose connecting the
compressor head to the sump tank, if
applicable.
25.Disconnect ground cables from rear
subframe ground-stud located close to the
starter motor.
26.Inside main power compartment, disconnect
starter, alternators and heater cables. Also
disconnect AFSS cable if applicable.
27.Disconnect Aftertreatment Device (ATD)
control cable.
28.Disconnect VIH (vehicle interface harness)
connector.
29.Disconnect fuel return line from bulkhead
fixed on engine cylinder head end.
30.Unfasten and put aside engine compartment
lighting fixture and turbocharger fire
suppression nozzle if applicable.
31.Disconnect turbo boost pressure gauge
airline from engine air intake, if applicable.
32. Disconnect the engine coolant hose near the
starter.
33.On partition wall, disconnect connector C397
located between engine compartment and
main power compartment.
34. Inspect the power plant assembly to ensure
that nothing will interfere when sliding out the
cradle. Check for connections or hoses not
mentioned in this list as some vehicles are
equipped with special or aftermarket
components.
NOTE
Check if any spacer(s) have been installed
between power plant cradle and vehicle rear
subframe, and if so, note position of each
washer for reinstallation purposes.
35. Using a forklift, with a minimum capacity of
4,000 lbs (1 800 kg), slightly raise the power
plant cradle.
36. Pull engine out slowly from the engine
compartment. Make sure all lines, wiring and
accessories are disconnected and are not
tangled.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 14
FIGURE 10: ENGINE COMPARTMENT H3 COACHES (TYPICAL) 01193
1.5 POWER PLANT ASSY. INSTALLATION
To install a power plant assembly, follow the
same procedure as in "Power Plant Assembly
Removal" except in reverse order, then proceed
with the following:
1. Torque the power plant cradle mounting
bolts to 190 lbf-ft (255 Nm).
2. Refill cooling system with saved fluid (refer
to Section 05 COOLANT SYSTEM).
3. Once engine fuel system has been drained,
it will aid restarting if fuel filters are filled with
fuel oil (refer to Section 03 FUEL SYSTEM).
4. Start engine for a visual check. Check fuel,
oil, cooling, pneumatic and hydraulic system
connections for leakage. Test operation of
engine controls and accessories.
1.6 ENGINE MOUNTS
The power plant assembly is mounted to the
cradle by means of rubber mounts and supports.
Two engine support brackets are used at the
front of the engine while two rubber mounts are
mounted underneath the engine & radiator fan
drive mechanism support and the engine &
alternator support (Fig. 11).
It is recommended that new rubber mounts be
installed at each major overhaul.
NOTE
Refer to the table on the following page for
engine cradle tightening torques.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 15
FIGURE 11: VOLVO ENGINE POWER PLANT CRADLE INSTALLATION
DRY TORQUES
REFERENCE DESCRIPTION Lbf-ft Nm
A SCREW, CAP HEXAGONAL HEAD M8 – 1.25 G8.8 16 22
B SCREW, CAP HEXAGONAL HEAD M8 – 1.25 G10.9 22 30
C SCREW, CAP HEXAGONAL HEAD M10 – 1.5 G10.9 43 58
D SCREW, CAP HEXAGONAL HEAD M12 – 1.75 G8.8 60 81
E SCREW, CAP HEXAGONAL HEAD M14 – 2.0 G8.8 90 122
F SCREW, CAP HEXAGONAL HEAD M16 – 2.0 G8.8 140 190
G SCREW, CAP HEXAGONAL HEAD M16 – 2.0 G10.9 190 258
H SCREW, CAP HEXAGONAL HEAD M20 – 2.5 G10.9 450 610

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 16
2. ELECTRONIC FOOT PEDAL ASSEMBLY (EFPA) & THROTTLE POSITION SENSOR
The Electronic Foot Pedal Assembly (EFPA) connects the accelerator pedal to a Throttle Position Sensor
(TPS). The (TPS) is a device, which sends an electrical signal to the Motor Control Module (MCM). The
TPS varies in voltage depending on how far the pedal is depressed. The system is installed in the space
normally occupied by a mechanical foot pedal. The (EFPA) has maximum and minimum stops that are
built into the unit during manufacturing (Fig. 24). The (TPS) converts the operator's foot pedal input into a
signal for the MCM.
When installed by the equipment manufacturer, the TPS should not require adjustment. If the TPS is
suspected of being misadjusted, confirm that the sensor is installed in accordance with the
manufacturer's specifications. It is recommended that the idle count be at 50 or higher with a full throttle
count of up to 200.
The TPS is self-calibrating and therefore has no optimum closed throttle or wide open throttle count
value. If the counts are within the 50 to 200 range, the sensor is properly set.
FIGURE 12: ELECTRONIC FOOT PEDAL ASSEMBLY 03035
Monitor the (TPS) at the controls as you move it through its full stroke. Be sure there is no misalignment
or obstruction preventing the smooth movement of the TPS through the full stroke. Using a diagnostic
data reader, check that the idle and full throttle position counts do not fall within the error zones. The error
zones occur when the idle position is less than 14 counts, or when the full throttle position is more than
233 counts. Should these conditions occur, the CPC will signal diagnostic codes of 21-12 for idle error
and 21-23 for wide-open throttle error.

Section 01: ENGINE
PA1578 SECTION 01 REVISED AUGUST 2012 17
3. SPECIFICATIONS
Make ....................................................................................................................................Volvo Powertrain
Type .......................................................................................Diesel four cycle/in-line direct injection engine
Description ...................................................................................................... Turbo/Air to air charge cooled
No. of cylinders ....................................................................................................................... 12.8 L in-line 6
Operating range ....................................................................................................................1400-1800 RPM
Peak Power Rating ............................................................................................................. 435 HP (324 kW)
Peak Torque Rating ......................................................................................................1650 Ft-lb (2237 Nm)
Low Idle..............................................................................................................................................600 rpm
Fast Idle............................................................................................................................................2150 rpm
Maximum full load revolutions..........................................................................................................1900 rpm
Engine oil level quantity
Oil Pan Capacity; Low Limit ..............................................................................................25 quarts/24 liters
Oil Pan Capacity; High Limit .............................................................................................34 quarts/32 liters
Total Engine Oil Capacity with Filters ...............................................................................41 quarts/39 liters
Lubricating oil filter elements
Prevost number............................................................................................................... 478736 (Full Flow)
Prevost number.................................................................................................................510938 (By-pass)
Torque specification
Engine oil filter.............................................................................. Tighten 3/4 to 1 turn after gasket contact
Filters
Engine Air Cleaner Filter
Prevost number ............................................................................................................................. 530197
Engine Coolant Filter
Make ................................................................................................................................................. Volvo
Number ...................................................................................................................................... 20458771