Page 1705 of 2057

Action
Possible Sources
Symptom
• CHECK for signs of contamina-tion such as strange odors from
the fuel tank.
• If contaminated fuel is found, DRAIN the complete fuel
system. FLUSH the fuel system
through with clean gasoline.
REFER to: Fuel Tank Draining
(310-00 Fuel System -
General Information, General
Procedures).
INSTALL a new fuel filter.
• INSPECT the fuel injectors. CLEAN the fuel injectors or
INSTALL a new set of injectors
as required only after the
checks have been carried out.
REFER to: Fuel Injectors (303-
04 Fuel Charging and
Controls - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• INSTALL a new fuel rail.
REFER to: Fuel Rail(303-04
Fuel Charging and Controls -
2.5L Duratec (147kW/200PS)
- VI5, Removal and Installa-
tion).
• Incorrect or contaminated fuel.
• INSPECT for visible signs ofdamage or blockage. CLEAN,
REPAIR or INSTALL new parts
as necessary.
• Positive crankcase ventilation
(PCV) system.
• REMOVE the cylinder head.INSPECT the cylinder head,
pistons and cylinder bores for
signs of wear or damage.
REFER to: Cylinder Head (303-
01 Engine - 2.5L Duratec
(147kW/200PS) - VI5,
Removal and Installation).
• Worn or damaged valve
guide(s), piston ring(s), cylinder
bore(s), cylinder head or
gasket.
G1183441en2008.50 Kuga8/2011
303-04A- 14
Fuel Charging and Controls
— 2.5L Duratec (147kW/200PS) -
VI5
303-04A- 14
DIAGNOSIS AND TESTING
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Page 1719 of 2057
6
79108
123
4
5
6
79108
E97592
Description
Item
Exhaust manifold
1
PCV (positive crankcase ventilation)- hose
Comments:to cylinder head
2
Vacuum line - recirculated air valve
Comments:to intake manifold
3
Coolant return pipe
4Description
Item
Turbo boost pressure controller
5
Oil supply pipe - TC
6
Wastegate control valve
7
TC
Comments:Contains the recirculated air valve
8
Coolant supply pipe
9
Oil return pipe - TC
10
G1032424en2008.50 Kuga8/2011
303-04B- 3
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 3
DESCRIPTION AND OPERATION
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Page 1725 of 2057

Turbocharger
Special Tool(s) / General EquipmentHand Vacuum/Pressure
Pump
416 - D001 (23 - 036A)
23036A
Fuel Pressure Gauge
310-053 (23-046)
23046
Ford diagnostic equipment
Inspection and Verification
NOTE:It is normal for a small amount of
combustion gas to pass into the crankcase. This
gas is scavenged into the air intake system through
the positive crankcase ventilation (PCV) system,
which incorporates an crankcase vent oil separator.
Some engine oil, in the form of a vapor is carried
into the air intake system with the blow-by gases
(this engine oil also contributes to valve seat
durability). This means that oil will collect inside
the air intake components and the turbocharger.
This is not an indication that the turbocharger oil
seal has failed. The turbocharger oil seal will not
fail unless the bearings fail first, which will cause
the turbocharger to become noisy or seize. Do not
install a new turbocharger due to oil inside the
turbocharger or the air intake components. If a leak
is detected in the oil supply or return tubes or connections, locate and rectify the source. Do not
install a new turbocharger due to an oil leak.
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
Visual Inspection Chart
Electrical
Mechanical
• Wiring harness
• Boost controlsolenoid valve
• Powertrain control module (PCM)
• Oil leak(s)
• Air cleaner element
• Air cleaner outlet
pipe
• Air cleaner intake pipe
• Turbocharger oil supply or oil return
tube
• Turbocharger intake pipe
• Turbocharger vacuum diaphragm
unit
• Turbocharger housing
• Charge air cooler
• Charge air cooler intake pipe and
hose(s)
• Charge air cooler outlet pipe and
hose(s)
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
NOTE: The vacuum diaphragm unit is a fixed part of the turbocharger and cannot be adjusted or renewed.
G1183442en2008.50 Kuga8/2011
303-04B- 9
Fuel Charging and Controls - Turbocharger
—
2.5L Duratec (147kW/200PS) - VI5
303-04B- 9
DIAGNOSIS AND TESTING
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Page 1752 of 2057

Description
Item
Start/stop button
1
Keyless vehicle module
2
Electronic steering lock with mount -
passive key and PATS transmitter/receiver
unit
Comments:for emergency start function
3
Radio frequency receiver
Comments:Signal is only executed in GEM
4Description
Item
GEM
5
Stoplight Switch
6
TCM7
Starting deactivation relay
8
PCM
9
Starter relay
10
Starter motor
11
Battery
12
System Operation
Smart Start
The PCM enables the starting process when a key
providing a valid code is read via the PATS. This
code is then verified in the GEM and compared
with the saved code. If this code is recognized as
correct, synchronization with other modules is
carried out. After successful synchronization, the
engine is cleared to start in the PCM. The PCM
connects earth to the starter relay, which then
connects power to the starter solenoid. As soon
as the engine reaches a certain speed, the PCM
disconnects the starter relay and so turns off the
starter. This protects the starter.
If the engine does not turn or turns only slowly, the
starting process is aborted by the PCM.
The starter is notactivated if:
• the engine is running (i.e. the engine speed is above a particular value),
• the PATS does not permit the engine to be started,
• the clutch pedal is not operated (vehicles with manual transmission),
• the gear selector level is not set to P or N (vehicles with automatic transmission),
• the brake pedal is not operated (vehicles with automatic transmission).
Emergency starting function
If the keyless vehicle system is unable to recognize
the passive key, the vehicle can be started via the
emergency starting function. In this case, there is a passive key mount on the
steering wheel. A PATS transmission/reception
unit is attached to this.
To start the engine, the passive key must be
inserted into the passive key mount. The Start/Stop
button can then be used to turn on the ignition and
start the engine as normal. To deactivate the
PATS, a transponder is fitted in the passive key,
which is read by the transmission/reception unit.
G1032961en2008.50 Kuga8/2011
303-06-
8
Starting System— 2.5L Duratec (147kW/200PS) - VI5303-06-
8
DESCRIPTION AND OPERATION
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Page 1762 of 2057
Description
Item
Intake manifold to turbocharger breather
hose
1
Crankcase vent oil separator to valve
cover hose
2
Crankcase vent oil separator to intake
manifold hose
3
Crankcase vent oil separator
4
G510285en2008.50 Kuga8/2011
303-08- 3
Engine Emission Control— 2.5L Duratec (147kW/200PS) - VI5303-08-
3
DESCRIPTION AND OPERATION
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Page 1763 of 2057

Engine Emission Control
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanicaldamage.
Visual Inspection Chart
Electrical
Mechanical
– Electricalconnector(s)
– Wiring harness
– Fuse(s)
– Relay
– Powertain control module (PCM)
– Hose(s)/hose joints
– Gasket(s)
– Positive crankcase
ventilation (PCV)
valve
– PCV crankcase vent oil separator
– Turbocharger 3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart
Action
Possible Sources
Symptom
• CLEAN or INSTALL new PCVcomponents as necessary.
TEST the system for normal
operation.
• Blocked PCV crankcase vent
oil separator.
• Blocked PCV hose.
• Excessive crankcase pressure
• Worn or damaged enginecomponents.
REFER to: Engine(303-00
Engine System - General
Information, Diagnosis and
Testing).
• Engine.
• CLEAN or INSTALL a newcrankcase vent oil separator.
TEST the system for normal
operation.
• Crankcase vent oil separator.
• Oil in the air intake system
• Worn or damagedturbocharger.
REFER to: Turbocharger (303-
04 Fuel Charging and
Controls - Turbocharger -
2.5L Duratec (147kW/200PS)
- VI5, Diagnosis and Testing).
• Turbocharger.
G1183446en2008.50 Kuga8/2011
303-08-
4
Engine Emission Control— 2.5L Duratec (147kW/200PS) - VI5303-08-
4
DIAGNOSIS AND TESTING
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Page 1764 of 2057
Action
Possible Sources
Symptom
• Worn or damaged enginecomponents.
REFER to: Engine(303-00
Engine System - General
Information, Diagnosis and
Testing).
• Excessive crankcase pressure.
G1183446en2008.50 Kuga8/2011
303-08-
5
Engine Emission Control— 2.5L Duratec (147kW/200PS) - VI5303-08-
5
DIAGNOSIS AND TESTING
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Page 1768 of 2057

Intake Air Distribution and Filtering
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanicalor electrical damage.
Visual Inspection Chart
Electrical
Mechanical
– Mass air flow (MAF)sensor
– Manifold absolute pressure (MAP)
sensor
– Electrical connector(s)
– Air cleaner element
– Air cleaner intake
pipe
– Air cleaner outlet pipe
– Charge air cooler
– Charge air cooler intake pipe
– Charge air cooler outlet pipe 3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart.
Symptom Chart
Action
Possible Sources
Symptom
• CHECK the pipe(s) for securityand leaks to atmosphere.
INSTALL new intake air
components as necessary.
TEST the system for normal
operation.
• Detached air cleaner pipe(s).
• Detached turbocharger pipe(s).
• Detached charge air cooler
pipe(s).
• Excessive intake air noise
• REFER to:Engine Emission
Control (303-08 Engine
Emission Control - 2.5L
Duratec (147kW/200PS) -
VI5, Diagnosis and Testing).
• Blocked or damaged PCV
pipe(s)/hose(s).
• Blocked or damaged crankcase vent oil separator.
• Oil in the air intake system
• REFER to:Turbocharger(303-
04 Fuel Charging and
Controls - Turbocharger -
2.5L Duratec (147kW/200PS)
- VI5, Diagnosis and Testing).
• Turbocharger.
• CHECK the air intake pipesplash shield for correct install-
ation and alignment.
REPAIR/INSTALL the air intake
pipe splash shield as neces-
sary. TEST the system for
normal operation.
• Air intake pipe splash shield.
• Water in the air cleaner
G1183447en2008.50 Kuga8/2011
303-12- 4
Intake Air Distribution and Filtering
— 2.5L Duratec
(147kW/200PS) - VI5
303-12- 4
DIAGNOSIS AND TESTING
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