303-00-6 Engine System - General Information 303-00-6
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Damaged gaskets or mating
surfaces.
- Cylinder head gasket is
damaged or mating face are
warped.
- Valve stem oil seals are
worn and engine oil can
enter the combustion
chamber between the valve
stem and the valve stem
guide.
Piston ring or cylinder liner
wear.
Damaged cylinder liners or
excessive clearance of engine
components.
- Pistons
- Piston rings (clearance in
groove and end gap)
- Cylinder liners
CHECK the gaskets and
mating surfaces for damage.
Remove the cylinder head.
CHECK the mating faces, cylinder
head gasket and the evenness of
the cylinder head and engine
block mating faces. INSTALL new valve
seals.REFER
to:
Valve Seals (303-01 Engine
-
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)/l .6L Duratec-I 6V
(Sigma), In-vehicle Repair),
Valve Seals (303-01 Engine
-
1.3L Duratec-8V (Rocam), In-
vehicle Repair),
Valve Seals (303-01 Engine
-
2.OL Duratec-HE (M14), In-
vehicle Repair),
Valve Seals (303-01 Engine
-
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Valve Seals (303-01 Engine
-
1.6L Duratorq-TDCi (DV)
CHECK the running surfaces
and clearances of the individual
engine components. INSTALL
new components as necessary.
INSTALL a new cylinder block
if necessary.
CHECK the pistons.
REFER to: Piston Inspection
(303-00 Engine System
-
General Information, General
Procedures).
CHECK the piston rings.
REFER to: (303-00 Engine
System
- General Information)
Piston Ring-to-Groove Clear- ance (General Procedures),
Piston Ring End Gap (General
Procedures).
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com
303-00-7 Engine System - General Information 303-00-7
DIAGNOSIS AND TESTING
Svm~tom Possible Sources Action
Coolant consumption Cooling system components.
Oil cooler.
CHECK the coooling system.
REFER to:
Engine
Cooling (303-03 Engine
Cooling - 1.3L Duratec-8V
(Rocam)/l.25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V
(Sigma)ll .6L Duratec-1 6V
(Sigma), Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 2.OL Duratec-HE
(M14), Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 1.4L Duratorq-TDCi
(DV)
Diesel, Diagnosis and
Testing),
Engine
Cooling (303-03 Engine
Cooling - 1.6L Duratorq-TDCi
(DV)
Diesel, Diagnosis and
Testing).
INSTALL a new oil cooler.
Damaged gaskets or warped
mating faces. CHECK the cylinder head
gasket for damage. CHECK the
cylinder head for distortion. - -- - -
Cracks or fractures in engine
components surrounded by
coolant, such as cylinder liners
and cylinder head combustion
chamber.
- - - - - - - -
DETERMINE the damaged
engine
component(s) and
install new component(s) as
necessary.
Engine will not crank Battery or cables. CHECK the battery, bracket
and
cables.
REFER to: Battery (41 4-01
Battery, Mounting and
Cables, Diagnosis and
Testing).
Starter motor or cables. I CHECK the starting system.
REFER to: Starting System
(303-06 Starting System,
Diagnosis and Testing).
2006.0 Fiesta 1212006 GI 52554en
I Engine cranks but will not start Fuel tank is empty. CHECK the fuel level.
procarmanuals.com
303-00-8 Engine System - General Information 303-00-8
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
2006.0 Fiesta 1212006 GI 52554en
Water
in fuel (diesel engine
only).
Fuel filter blocked.
Engine intake air system.
Glow plug faulty (diesel engine
only).
Engine management system.
. Drain the water from the fuel
system. Engine
- I .4L
Duratorq-TDCi (DV)
DiesellEngine - 1.6L Duratorq-
TDCi (DV) Diesel.
REFER to: Fuel System
- I .4L
Duratorq-TDCi (DV)
Diesel11 .6L Duratorq-TDCi
(DV) Diesel (31 0-00 Fuel
System
- General Informa-
tion, Diagnosis and Testing).
INSTALL a new fuel filter.
REFER to: (31 0-01 Fuel Tank
and Lines)
Fuel Filter
- 1.4L Duratorq-TDCi
(DV) Diesel (Removal and
Installation),
Fuel Filter
- I .6L Duratorq-TDCi
(DV) Diesel (Removal and Installation).
CHECK the intake air system.
REFER to: Intake Air Distribu-
tion and Filtering (303-12
Intake Air Distribution and
Filtering, Diagnosis and
Testing).
. CHECK the glow plugs.
INSTALL new glow plugs as
necessary. REFER to:
Glow Plug (303-07 Glow Plug
System - 1.4L Duratorq-TDCi
(DV) Diesel, Removal and
Installation),
Glow Plugs (303-07 Glow Plug
System - 1.6L Duratorq-TDCi
(DV) Diesel, Removal and
Installation).
CHECK the engine manage-
ment system.
REFER to: Electronic Engine
Controls (303-1 4 Electronic Engine Controls, Diagnosis
and Testing).
procarmanuals.com
303-00-9 Engine System - General Information 303-00-9
DIAGNOSIS AND TESTING
Symptom Possible Sources
Action
lgnition system (petrol engines
only).
CHECK the ignition system.
REFER to:
Engine
lgnition (303-07 Engine
Ignition, Diagnosis and
Testing),
Engine
lgnition (303-07 Engine
lgnition - 2.OL Duratec-HE
(M14), Diagnosis and
Testing).
Incorrect valve timing. CHECK and adjust the valve
timing. REFER to:
Timing
Belt (303-01 Engine -
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-I 6V
(Sigma)ll .6L Duratec-I 6V
(Sigma), I n-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Crankshaft
Pulley (303-01
Engine
- 2.OL Duratec-HE
(M14), In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
Broken or damaged timing
beltltiming chain or
pulleylsprocket.
CHECK the timing beltltiming
chain and sprocketslpulleys.
INSTALL new components as
necessary. REFER to:
Timing
Belt (303-01 Engine -
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)ll .6L Duratec-I 6V
(Sigma), In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Timing Chain (303-01 Engine
- 2.OL Duratec-HE (M14), In-
vehicle Repair),
Timing
Belt (303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
2006.0 Fiesta 12,2006 GI 52554en
procarmanuals.com
303-00-1 0 Engine System - General Information 303-00-1 0
DIAGNOSIS AND TESTING
Symptom
Very poor power output or fuel
consumption too high or engine
running rough
Possible Sources Action
Fuel system. CHECK the fuel system.
REFER to:
Fuel Charging and Controls
(303-04 Fuel Charging and
Controls
- 1.25L Duratec-1 6V
(Sigma)/l.4L Duratec-I 6V
(Sigma)/l.GL Duratec-1 6V
(Sigma), Diagnosis and
I Testing),
Fuel Charging and Controls
(303-04 Fuel Charging and
Controls
- 1.3L Duratec-8V
(Rocam), Diagnosis and
Testing),
Fuel Charging and Controls
(303-04 Fuel Charging and
Controls
- I .4L Duratorq-
TDCi (DV) Diesel, Diagnosis and Testing),
Fuel Charging and Controls
(303-04 Fuel Charging and
Controls
- 1.6L Duratorq-
TDCi (DV) Diesel, Diagnosis
and Testing).
Engine intake air system. CHECK the intake air system.
REFER to: lntake Air Distribu-
tion and Filtering
(303-12
lntake Air Distribution and
Filtering, Diagnosis and
Testing).
Exhaust system blocked. I CHECK the exhaust system.
REFER to: Exhaust System
(309-00 Exhaust System,
Description and Operation).
Engine management system.
CHECK the engine manage-
ment system.
REFER to: Electronic Engine
Controls (303-1 4 Electronic
Engine Controls, Diagnosis
and Testing).
Fault in ignition system (petrol
engines only). CHECK the ignition system.
REFER to:
Engine lgnition (303-07 Engine
Ignition, Diagnosis and
Testing),
Engine lgnition (303-07 Engine
lgnition
- 2.OL Duratec-HE
(M14), Diagnosis and
Testing).
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com
303-00-1 I Engine System - General Information 303-00-1 I
DIAGNOSIS AND TESTING
Symptom Possible
Sources Action --
Turbocharger (diesel engine
only).
CHECK the turbocharger.
REFER to:
Turbocharger (303-04
Fuel
Charging and Controls -
Turbocharger - 1.4L
Duratorq-TDCi (DV) Diesel,
Diagnosis and Testing),
Turbocharger (303-04
Fuel
Charging and Controls -
Turbocharger - 1.6L
Duratorq-TDCi (DV) Diesel,
Diagnosis and Testing).
Incorrect valve timing. Timing
beltltiming sprocket or
pulleylsprocket damaged. CHECK
and adjust the
valve
timing. REFER to:
Timing
Belt (303101 Engine -
I .25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)ll .6L Duratec-1 6V
(Sigma), In-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Crankshaft
Pulley (303-01
Engine
- 2.OL Duratec-HE
(M14), In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
Ignition timing incorrect (petrol
engines only).
CHECK the electronic engine
controls.
REFER to: Electronic Engine
Controls (303-1 4 Electronic
Engine Controls, Diagnosis
and Testing).
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com
303-00-1 2 Engine System - General Information 303-00-1 2
DIAGNOSIS AND TESTING
Symptom Possible Sources Action
Noisy running Engine auxiliary components
loose or damaged. CHECK
engine auxiliary
components for damage or
looseness. REFER to:
Timing Belt
(303-01 Engine -
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)ll .6L Duratec-I 6V
(Sigma), In-vehicle Repair),
Timing Chain
(303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Timing Chain
(303-01 Engine
- 2.OL Duratec-HE (M14), In-
vehicle Repair),
Timing Belt
(303-01 Engine -
I .4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing Belt
(303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
Noisy running, misfiring, back-
firing or knocking
Incorrect fuel DETERMINE which type of fuel
was last put in the tank (note
the country specific fuel
specifications).
Valve timing incorrect, timing
beltlchain or pulleylsprocket
damaged.
Water in fuel or fuel contamin-
ated.
CHECK and adjust the valve
timing. REFER to:
CHECK the fuel system for
water or other contamination.
Timing Belt
(303-01 Engine -
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-1 6V
(Sigma)/l.GL Duratec-1 6V
(Sigma), In-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
I n-vehicle Repair),
Crankshaft Pulley
(303-01
Engine - 2.OL Duratec-HE
(M14), In-vehicle Repair),
Timing Belt
(303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair),
Timing Belt
(303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
2006.0 Fiesta 1212006 f GI 52554en
procarmanuals.com
303-00-1 3 Engine System - General Information 303-00-1 3
DIAGNOSIS AND TESTING
Symptom
Noisy running or valve train
noise
Possible Sources Action
Valve clearance too large due
to
faulty valve tappets or worn
valve train components.
Timing
belt or timing chain
damaged.
INSTALL new hydraulic lash
adjusters or adjust the valve
clearance. REFER to:
Valve Clearance Adjustment
(303-01 Engine
- 1.25L
Duratec-I 6V (Sigma)ll.4L
Duratec-1 6V (Sigma)/l .6L
Duratec-I 6V (Sigma),
General Procedures),
Camshaft
Followers (303-01
Engine - 1.3L Duratec-8V
(Rocam), In-vehicle Repair),
Valve Clearance Adjustment
(303-01 Engine
- 2.OL
Duratec-H E (M 14), General
Procedures),
Hydraulic Lash Adjuster (303-
01 Engine
- I .4L Duratorq-
TDCi (DV) Diesel, In-vehicle
Repair),
Camshaft (303-01 Engine
-
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
INSTALL a new timing belt or
timing chain. REFER to:
Timing Belt (303-01 Engine
-
1.25L Duratec-1 6V
(Sigma)ll.4L Duratec-I 6V
(Sigma)/l .6L Duratec-1 6V
(Sigma), In-vehicle Repair),
Timing Chain (303-01 Engine
- 1.3L Duratec-8V (Rocam),
In-vehicle Repair),
Timing Chain (303-01 Engine
- 2.OL Duratec-HE (M14), In-
vehicle Repair),
Timing
Belt (303-01 Engine -
1.4L Duratorq-TDCi (DV)
Diesel,
In-vehicle Repair),
Timing
Belt (303-01 Engine -
1.6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com