2007 FORD FIESTA Workshop Manual

Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/l .6L Duratec-1 6V (Sigma)
DESCRIPTION AND OPERATION
Engine Emission Control
Positive Crankcase Ventilation (PCV) - 1.3L Duratec 8V
Overview
Side view Item Description
2006.0 Fiesta 1212006 GI 67099en
Item Description From Evaporative Emission (EVAP)
solenoid valve
1
2
Cylinder head cover with integrated oil
separator
From PCV valve
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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
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Engine Emission Control - 1.3L Duratec-8V
(Rocam)ll.25L Duratec-1 6V (Sigma)ll.4L
303-08A-5 Duratec-1 6V (Sigma)/l.GL Duratec-1 6V (Sigma) 303-08A-5
DESCRIPTION AND OPERATION
PCV
- 1.4Ll1.6L Duratec 16V
Description The crankcase gases are freed of oil in the valve
cover and in the PCV oil separator in order to
prevent the oil from being sucked in and burned.
housing The
PCV valve is located in the PCV oil separator.
The amount of crankcase gases depends on the
engine speed.
The crankcase gases
are sucked
by the PCV valve
into the intake manifold. 3
4
2006.0 Fiesta 1212006 GI 67099en
Hose from PCV oil separator to intake
manifold
intake manifold.
PCV
oil separator with integral PCV valve The
PCV valve is opened by the vacuum in the
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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
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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
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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
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Engine Emission Control - 2.OL Duratec-HE
(MI41
SPECIFICATIONS
Toraue Specifications
I Description I Nm I Ib-ft I Ib-in I/
I Exhaust gas recirculation (EGR) valve bolts I 25 I 18 I - I\
2006.0 Fiesta 12/2006 G37567en
EGR valve outlet tube union
Crankcase vent oil separator retaining bolts 55
10
41
-
-
89
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