section 4 FORD FIESTA 2007 Workshop Manual

Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-I 6V (Sigma)ll.4L
303-08A-1 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-08A-1
SECTION 303-08A Engine Emission Control - 1.3L
Duratec-8V (Rocam)/lm25L Duratec-I 6V (Sigma)/l.4L
Duratec-I 6V (Sigma)/l .6L Duratec-I 6V (Sigma)
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
Specifications ........................................................................\
............................................. 303-08A-2
DESCRIPTION AND OPERATION
Engine Emission Control ........................................................................\
............................ 303-08A-3
Positive Crankcase Ventilation (PCV)
- 1.3L Duratec 8V .................................................. 303-08A-3
PCV
- 1.4Ll1.6L Duratec 16V ................................. ...................... .............................. 303-08A-5
DIAGNOSIS AND TESTING
Engine Emission Control.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303-08A-6
Inspection and Verification
........................................................................\
.......................... 303-08A-6
i Symptom Chart.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303-08A-6
REMOVAL AND INSTALLATION
Crankcase Vent Oil Separator ........................................................................\
.................... 303-08A-7
procarmanuals.com

Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)llI4L
303-08A-4 Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma) 303-08A-4
DESCRIPTION AND OPERATION
PCV valve
Sectional view
Item Description
Deflection panel
Side view
item Description
I I 1 Spring I I 1 I Deflection plate I
1 2 1 pistons I
The PCV valve is located on the upper side of the
cylinder head cover.
The crankcase gases are sucked by the PCV valve
into the intake manifold.
The PCV valve is opened by the vacuum in the
intake manifold.
The amount of crankcase gases depends on the
engine speed. The quantity sucked in is determined
by the spring and the shape of the piston. The deflection plate
is integrated into the cylinder
head cover.
It prevents oil from being sucked in and burned in
the combustion process.
The oil drops condense on the deflection plate and
are then returned to the oil circuit.
2006.0 Fiesta 1212006 GI 67099en
procarmanuals.com

Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)ll .6L Duratec-I 6V (Sigma)
DIAGNOSIS AND TESTING
Engine Emission Control
lnspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
damage.
3. If an obvious cause for an observed or reported
Visual lnspection Chart
I 1 concern is found, correct the cause (if possible)
I Mechanical I before proceeding to the next step.
. -
Symptom Chart
Positive crankcase ventilation (PCV) valve
PCV separator
Symptom Chart
Symptom
Excessive crankcase pressure
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Oil in the air intake system Possible
Sources
Blocked PCV valve.
Blocked PCV separator.
Blocked PCV hose.
Restriction in PCV separator.
PCV valve permanently open. Action
CLEAN
or INSTALL new PCV
components as necessary.
TEST the system for normal
operation. If the concern
persists, REFER to
Section 303-00 [Engine
System
- General Information].
CLEAN or INSTALL a new
PCV separator. TEST the
system for normal operation.
-
INSTALL a new PCV valve.
TEST the system for normal
operation.
2006.0 Fiesta 1212006 Gl48220en
procarmanuals.com

Engine Emission Control - 1.3L Duratec-8V
(Rocam)llI25L Duratec-1 6V (Sigma)llm4L
303-O8A-7 Duratec-1 6V (Sigma)ll .6L Duratec-1 6V (Sigma) 303-0844-7
REMOVAL AND INSTALLATION
Crankcase Vent Oil Separator
i
Removal
1. Remove the air cleaner. For additional
information, refer to Section
303-1 2 [Intake
Air Distribution and Filtering].
2. Remove the intake manifold. For additional
information, refer to Section 303-01A
[Engine
-- 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)llm6L Duratec-1 6V
(Sigma)] I 303-01 B [Engine -- 1.4L
Duratorq-TDCi (DV) Diesel] I 303-01 C [Engine
-- 1.3L Duratec-8V (Rocam)] I 303-01 D
[Engine
-- 2.OL Duratec-HE (M14)I 1 303-01 E
[Engine
-- 1.6L Duratorq-TDCi (DV) Diesel].
3. Remove the crankcase vent oil separater.
Discard the gasket.
Installation
I. N0TE:lnstall a new crankcase vent oil
separator gasket.
To install, reverse the removal procedure.
2006.0 Fiesta 1212006 G210048en
procarmanuals.com

Engine Emission Control - 2.OL Duratec-HE
303-08B-1 (MI41 303-08B-1
1 SECTION 303-08B Engine Emission Control - 2.OL
Duratec-HE (M14)
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
Specifications ........................................................................\
.......................................... 303-088-2
DESCRIPTION AND
OPERATION
Engine Emission Control ........................................................................\
............................ 303-088-3
DIAGNOSIS AND TESTING
Engine Emission Control ........................................................................\
...................... 303-088-6
Inspection and Verification
........................................................................\
........................ 303-088-6
Symptom Chart
........................................................................\
.......................................... 303-088-6
REMOVAL AND INSTALLATION
,, Exhaust Gas Recirculation (EGR) Valve ........................................................................\
.... 303-088-8
Crankcase Vent Oil Separator
............................. ........................................................... 303-088-1 0
procarmanuals.com

Engine Emission Control - 2.OL Duratec-HE
303-08B-6
(MI41 303-08B-6
DIAGNOSIS AND TESTING
Engine Emission Control
lnspection and Verification
General Equipment Visual Inspection Chart L..
I. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
Worldwide Diagnostic System
(WDS)
- Hose(s)/hose joints
- Gasket(s)
- Positive crankcase
ventilation (PCV)
valve
- PCV separator
Mechanical
- Exhaust gas recircu-
lation (EGR) valve
Electrical
- Electrical
con
nector(s)
- Wiring harness
- Fuse(s)
- Relay
- EGRvalve
- Powertain control
module (PCM)
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 concern is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart
Symptom Chart
Symptom Possible Sources Action
I
Poor engine performance EGR valve.
Using WDS, CHECK the EGR
Valve Duty Cycle input signal
I to the EGR vacuum regulator
valve. If the result is 0%,
REMOVE the EGR valve.
REFER to Exhaust Gas Recir-
culation (EGR) Valve
- in this
section.
INSPECT the EGR valve and
valve seat for damage. Make
sure that the EGR valve is in
the closed position. If the EGR
valve is not closed. INSTALL
a
new EGR valve. TEST the
system for normal operation. If
the result is not 0% continue
the engine diagnostic using
WDS.
2006.0 Fiesta 1212006 G334290en
Excessive crankcase pressure Blocked or damaged PCV
hose(s).
Blocked crankcase vent oil
separator. CHECK
the PCV system
components for blockages, CLEAN or INSTALL new
components as necessary.
procarmanuals.com

Engine Emission Control - 2.OL Duratec-HE
303-08B-7
(MI41 303-08B-7
DIAGNOSIS AND TESTING
Symptom Possible Sources
Action
Worn or damaged engine
components. REFER to Section 303-01A
[Engine -- 1.25L Duratec-I 6V
(Sigma)/l.4L Duratec-1 6V
(Sigma)ll .6L Duratec-1 6V
(Sigma)] 1 303-01 B [Engine --
1.4L Duratorq-TDCi (DV)
Diesel] 1 303-01 C [Engine
--
1.3L Duratec-8V (Rocam)] I
303-01 D [Engine -- 2.OL
Duratec-HE (M 14)] 1 303-01 E
[Engine
-- 1.6L Duratorq-TDCi
(DV) Diesel].
2006.0 Fiesta 1212006 G334290en ~
procarmanuals.com

Engine Emission Control - 2.OL Duratec-HE
303-08B-10 (MI41 303-08B-10
REMOVAL AND INSTALLATION
Crankcase Vent Oil Separator
Removal
I. Remove the intake manifold. For additional Discard the gasket.
information, refer to Section 303-OIA
[Engine
-- 1.25L Duratec-1 6V (Sigma)ll.4L
Duratec-I 6V (Sigma)ll .6L Duratec-I 6V
(Sigma)] I 303-01 B [Engine -- 1.4L
Duratorq-TDCi (DV) Diesel] I 303-01 C [Engine
-- 1.3L Duratec-8V (Rocam)] I 303-01 D
[Engine
-- 2.OL Duratec-HE (M14)] 1 303-01 E
[Engine
-- 1.6L Duratorq-TDCi (DV) Diesel].
2. Disconnect the positive crankcase ventilation
(PCV) hose from the PCV valve.
Installation
I. N0TE:lnstall a new crankcase vent oil
separator gasket.
To
install, reverse the removal procedure.
3. Remove the PCV
valve from the crankcase
vent
oil separator.
1. Push in the locking tangs.
2. Twist the PCV valve to remove.
4. Remove the crankcase vent oil separator.
- - --
2006.0 Fiesta la2006 G37566en
procarmanuals.com

303-1 2-1 Intake Air Distribution and Filtering 303-1 2-1
SECTION 303-12 lntake Air Distribution and Filtering
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS
SPECIFICATIONS
Specifications..
. . . . . .. . .. . .. .. . . .. . . . . ....... . . . .. . . . . .. .. . . . . .. . . . . . . .. .. . . . . .. .. . . .. .... ...... .. .. .. . . . . .. . . ........ .. .. .. .. . . . . .
DESCRIPTION AND OPERATION
lntake Air Distribution and Filtering - 1.4L Duratec-1 6V (Sigma)/l .6L Duratec-1 6V
(Sigma) ........................................................................\
.....................................................
lntake manifold ........................................................................\
...........................................
lntake Air Distribution and Filtering - 2.OL Duratec-HE (M14) ...........................................
2.OL Duratec HE (M14) engine ........................................................................\
....................
DIAGNOSIS AND TESTING
lntake Air Distribution and Filtering.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Verification ........................................................................\
..........................
Symptom Chart.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
!. ' REMOVAL AND INSTALLATION
Air
Cleaner - 1.25L Duratec-1 6V (Sigma)/l.4L Duratec-I 6V (Sigma)/l .6L
Duratec-1
6V (Sigma) ........................................................................\
............ (23 174 0)
Air
Cleaner - 2.OL Duratec-HE (M14) ..................... .......................... .......... .................... ...
PAGE
procarmanuals.com

303-1 3-1 Evaporative Emissions 303-1 3-1
SECTION 303-1 3 Evaporative Emissions
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
DESCRIPTION AND OPERATION
Evaporative Emissions ........................................................................\
............................... 303-1 3-2
Overview
........................................................................\
.................................................... 303-1 3-2
DIAGNOSIS AND TESTING
Evaporative Emissions ........................................................................\
............................... 303-1 3-3
Inspection and Verification ..... . . .. .. .. .. . . .. .. .... ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303-1 3-3
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)
procarmanuals.com