Page 897 of 1226
Engine Emission Control - 2.OL Duratec-HE
303-08B-3
(MI41 303-08B-3
DESCRIPTION AND OPERATION
Engine Emission Control
1 2 1 EGRvalve gasket I oxide exhaust emissions.
Item Description introduced to the incoming charge in the intake
1
The exhaust gas recirculation (EGR) system allows
intake manifold by the EGR valve.
Exhaust gas recirculation (EGR) valve
--
3
a measured quantity of exhaust gas to be directed The EGR valve is controlled by an input from the back
to the intake manifold. The exhaust gas is powertrain control module
manifold, where it dilutes the air fuel mixture and
lowers the peak gas temperature, reducing nitrogen
2006.0 Fiesta 1212006 G37563en
the cylinder head from the exhaust manifold to the
-
EGR outlet The exhaust gas
is drawn through a passage within
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Page 912 of 1226

303-1 2-8 Intake Air Distribution and Filtering 303-1 2-8
DIAGNOSIS AND TESTING
Svm~tom Possible Sources Action
Oil in the air intake system Blocked or damaged positive
crankcase
ventilation (PCV)
valve.
Blocked or damaged PCV
pipe(s)/hose(s).
Blocked or damaged crankcase
vent
oil separator.
Vehicles with 1.25L Duratec-
16V
(Sigma)/l.3L Duratec-8V (
(Rocam)/l.4L Duratec-I 6V
(Sigma)/l .6L Duratec-1 6V
(Sigma) engine.
REFER to: Crankcase Vent
Oil
Separator (303-08 Engine
Emission
Control - 1.3L
Duratec-8V (Rocam)/l.25L
Duratec-I 6V (Sigma)/l.4L
Duratec-I 6V (Sigma)/l .6L
Duratec-1
6V (Sigma),
Removal and Installation).
Vehicles with 2.0L Duratec-HE
(M14) engine.
REFER to: Crankcase Vent
Oil
Separator (303-08C Engine
Emission
Control - 2.OL
Duratec-HE (M14), Removal
and Installation).
Turbocharger (Vehicles with
Duratorq-TDCi (DV)
Diesel
engine or 1.6L Duratorq-TDCi
(DV)
Diesel engine).
Vehicles with 1.4L Duratorq-
TDCi (DV)
Diesel engine.
REFER to: Turbocharger (303- 04
Fuel Charging and
Controls - Turbocharger -
1.4L Duratorq-TDCi (DV)
Diesel, Removal and Installa-
tion).
Vehicles with I .6L Duratorq-
TDCi (DV)
Diesel engine.
REFER to: Turbocharger
- I .6L
Duratorq-TDCi (DV)
Diesel
(303-04 Fuel Charging and
Controls - Turbocharger -
1.6L Duratorq-TDCi (DV)
Diesel, Removal and Installa-
tion).
Water in the air cleaner Detached air cleaner intake
pipe. CHECK
the air cleaner intake
pipe for security. INSTALL new
intake air system components
as necessary. TEST the
system for
normal operation.
Blocked air cleaner drain. CLEAN
the air cleaner drain.
TEST the system for
normal
operation.
Engine lacks power
Air cleaner element blocked. INSPECT the air cleaner for ,.
new air cleaner element as
i signs of blockage. INSTALL a .
necessary. I_
2006.0 Fiesta 1212006 G421937en
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Page 914 of 1226

303-1 2-1 0 Intake Air Distribution and Filtering 303-1 2-1 0
DIAGNOSIS AND TESTING
Symptom
Possible Sources Action
2006.0 Fiesta 1212006 G421937en
Fuel charging and controls Vehicles with 1.3L Duratec-8
(Rocam) engine.
REFER to:
Fuel Charging and
Controls (303-04 Fuel Char-
ging and
Controls - 1.3L
Duratec-8V (Rocam),
Diagnosis and Testing).
Vehicles with 1.25L Duratec-
16V (Sigma)/l.4L Duratec-1 6V
(Sigma)/l .6L Duratec-I 6V
(Sigma) engine.
REFER to:
Fuel Charging and
Controls (303-04 Fuel Char-
ging and
Controls - 1.25L
Duratec-1 6V (Sigma)/l.4L
Duratec-1 6V (Sigma)/l .6L
Duratec-I
6V (Sigma),
Diagnosis and Testing).
Vehicles with I .4L Duratorq-
TDCi (DV)
Diesel engine.
REFER to:
Fuel Charging and
Controls (303-04 Fuel Char-
ging and
Controls - 1.4L
Duratorq-TDCi (DV) Diesel,
Diagnosis and Testing).
Vehicles with 2.OL Duratec-HE
(M14) engine.
REFER to:
Fuel Charging and
Controls (303-04 Fuel Char-
ging and
Controls - 2.OL
Duratec-H E (M14), Diagnosis
and Testing).
Vehicles with I .6L Duratorq-
TDCi (DV)
Diesel engine.
REFER to:
Fuel Charging and
Controls (303-04 Fuel Char-
ging and
Controls - 1.6L
Duratorq-TDCi (DV) Diesel,
Diagnosis and Testing).
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Page 915 of 1226
303-1 2-1 1 Intake Air Distribution and Filtering 303-1 2-1 I
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Turbocharger (Vehicles
with
Duratorq-TDCi (DV) Diesel
engine or
1.6L Duratorq-TDCi
(DV) Diesel engine). Vehicles
with
1.4L Duratorq-
TDCi (DV) Diesel engine.
REFER to: Turbocharger (303-
04 Fuel Charging and
Controls
- Turbocharger -
1.4L Duratorq-TDCi (DV)
Diesel, Removal and Installa-
tion).
Vehicles with
1.6L Duratorq-
TDCi (DV) Diesel engine.
REFER to: Turbocharger
- 1.6L
Duratorq-TDCi (DV) Diesel
(303-04 Fuel Charging and
Controls
- Turbocharger -
1.6L Duratorq-TDCi (DV)
Diesel, Removal and Installa-
tion).
2006.0 Fiesta 1212006 G421937en
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Page 920 of 1226
303-1 3-2 Evaporative Emissions 303-1 3-2
DESCRIPTION AND OPERATION
Evaporative Emissions
Overview
Item Description
I 1 I From activated charcoal canister I
1 2 1 From fuel tank I
1 3 1 Non-return valve I
1 4 1 Carbon canister I
5 Evaporative Emission (EVAP) solenoid
I 1 valve
1 6 1 To the intake manifold I
The EVAP collection system prevents fuel vapours
from reaching the atmosphere.
To achieve this, the fuel vapours are led from the
fuel tank into the activated charcoal canister, and
temporarily stored there.
Under part load the Powertrain Control Module
(PCM) activates the EVAP solenoid valve. This
causes the fuel vapours to be passed on to the
intake system of the engine.
2006.0 Fiesta 1212006 G281359en
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Page 922 of 1226

303-1 34 Evaporative Emissions 303-1 3-4
REMOVAL AND INSTALLATION
Evaporative Emission Canister - 1.3L Duratec-8V (Rocam)/l.25L
Duratec-1 6V (Sigma)/l.4L Duratec-I 6V (Sigma)/l .6L
Duratec-1
6V (Sigma)(29 250 0)
c
General Equipment 3. Detach the exhaust system from the center
Transmission jack exhaust hanger insulator.
Removal
WARNINGS:
A Do not smoke or carry lighted tobacco or
open flame of any type when working on
or near fuel related components. Highly
flammable vapors are always present and
may ignite. Failure to follow these
instructions may result in personal injury.
A This procedure involves fuel handling. Be
prepared for fuel spillage at all times and
always observe fuel handling precautions.
4. N0TE:When detaching the exhaust system
Failure to follow these instructions may
allow the system to be supported by the rear
result in personal injury.
suspension assembly.
I. Raise and support the vehicle. For additional
Detach the exhaust system from the rear
information, refer to Section
100-02 [Jacking
exhaust hanger insulator.
and Lifting].
2. Remove the floor panel crossmember.
5. Remove the exhaust system heat shield.
-
2006.0 Fiesta 1212006 G210050en
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Page 923 of 1226

303-1 3-5 Evaporative Emissions 303-1 3-5
REMOVAL
AND INSTALLATION
ACAUTION:U~~ a suitable packing material 9m ACAUTION:W~~~ lowering the fuel tank,
to prevent damage to the underside of the make
sure that excessive strain is not placed
fuel tank. on
the fuel lines and electrical connectors.
Using a suitable transmission jack, support Partially lower
the fuel tank.
the fuel tank.
10. Disconnect the fuel tank vent pipe from the
7. Remove the fuel tank support strap rear evaporative
emission canister. For
retaining bolts. additional information,
refer to
Section 31 0-00 [Fuel System
- General
Information].
8. N0TE:Make note of the positions of the
support straps to make sure they are
positioned in exactly the same positions
11. Disconnect the back pressure valve from
when installing (left-hand over right-hand). the
evaporative emission canister.
Remove the fuel tank support straps.
Hold the cap against the canister and pull
the back pressure valve.
2006.0 Fiesta 1212006 G210050en
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Page 924 of 1226
303-1 3-6 Evaporative Emissions 303-1 3-6
REMOVAL AND INSTALLATION
12. Remove the evaporative emissions canister
from the fuel tank.
Installation
1. WARNINGS:
ADO not smoke or carry lighted tobacco or
open flame of any type when working on or
near fuel related components. Highly
flammable vapors are always present and
may ignite. Failure to follow these
instructions may result in personal injury.
A~his procedure involves fuel handling.
Be prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury.
N0TE:When installing the fuel tank make sure the
fuel lines do not get kinked or trapped.
To install, reverse the removal procedure.
2006.0 Fiesta 1212006 G210050en
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