211 -00-5 Steering System - General Information 211 -00-5
DIAGNOSIS AND TESTING
Steering System
/ Special Tool(s)
Alignment Pins, Subframe
205-524
Simulator, Driver and
passenger ~ir Bags and Side
Air Curtains 50
1 -073A
General Eaui~ment
I Worldwide Diagnostic System (WDS) I
Principles of Operation
The steering wheel rotational movement is
transferred to the steering gear through the steering
column shaft. The steering gear converts this
rotational movement, through the action of the rack
and pinion gear into lateral movement. This
movement in turn is transferred to the wheel
knuckles through the tie-rods and tie-rod ends.
Hydraulic fluid under pressure is supplied to the
steering gear by the power steering pump. As the
steering wheel is rotated, the hydraulic fluid is
allowed to pass through the steering gear valve to
one side of a double acting piston, dependent on
which direction the steering wheel is rotated. The
fluid moves the piston, which forms part of the
steering gear, giving power assistance to the effort
required to rotate the steering wheel.
Vehicles with petrol engines, due to the extra load
on the engine imposed by the power steering
pump, have a power steering pressure (PSP)
switch. The switch, which is normally closed, sends a signal
to the powertrain control module (PCM)
during low speed parking manoeuvres. The PCM
responds by maintaining the engine idle speed.
lnspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
Visual lnspection Chart
I Mechanical I Electrical I
Tire pressure(s)
Accessory drive belt
Tie-rod ends
Tie-rod (s)
Steering gear housing
Front strut and
spring assemblies
Front suspension
lower arm ball joints
Front suspension
lower arm bushings
Pinch bolt on
steering column
shaft flexible coup-
ling Power
steering pres-
sure (PSP) switch
Wheels and tires
Power steering line
fluid leaks
Steering gear
bellows
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
Symptom Possible Sources Action
Drift left or right
2006.0 Fiesta 1212006 Gl49906en
Vehicle attitude incorrect (front
or rear is high or low). CHECK for abnormal loading,
coil spring sag or non-standard
springs.
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303-00-1 Engine System = General Information 303-00-1
SECTION 303-00 Engine System . General lnformation
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
DESCRIPTION AND
OPERATION
Engine
........................................................................\
......................................................... 303-00-3
Engineltransmission combinations ........................................................................\
........ 303-00-3
DIAGNOSIS AND TESTING
........................................................................\
.......................................................... Engine
. Engine Oil Leaks ........................................................................\
........................................
Ultraviolet (UV) Testing ........................................................................\
...............................
Measure the compression pressure ........................................................................\
...........
.............. Measure the compression pressure (Engine . 1.4L Duratorq-TDCi (DV) Diesel)
Measure the compression pressure (Engine
. 1.6L Duratorq-TDCi (DV) Diesel) ..............
Measure the compression pressure (Engine . 1.25L Duratec-I 6V (Sigma)/l.4L Duratec-I 6V
........................................................................\
......... (Sigma)ll . 6L Duratec-I 6V (Sigma))
Measure the compression pressure (Engine
. 1.3L Duratec-8V (Rocam)) ........................
Measure the compression pressure (Engine . 2.OL Duratec-HE (M14)) .............................
. Measure the oil pressure (Engine 1.4L Duratorq-TDCi (DV) Diesel) ...............................
Measure the oil pressure (Engine . 1.6L Duratorq-TDCi (DV) Diesel) ...............................
Measure the oil pressure (Engine . 1.25L Duratec-1 6V (Sigma)/l.4L Duratec-1 6V
........................................................................\
......... (Sigma)/l . 6L Duratec-1 6V (Sigma))
. Measure the oil pressure (Engine 1.3L Duratec-8V (Rocam)) .........................................
. Measure the oil pressure (Engine 2.OL Duratec-HE (M14)) ...............................................
Valve train analysis . static (engine off) ........................................................................\
......
GENERAL PROCEDURES
Camshaft Bearing Journal Diameter
........................................................................\
..........
Camshaft Bearing Journal Clearance ........................................................................\
.........
Camshaft End Play ........................................................................\
.....................................
Camshaft Surface Inspection ........................................................................\
.....................
........................................................................\
...................................... Camshaft Lobe Lift
Crankshaft Main Bearing Journal Diameter
........................................................................\
Crankshaft End Play ........................................................................\
...................................
Cylinder Bore Taper ........................................................................\
....................................
Piston Inspection ........................................................................\
........................................
Piston Pin to Bore Diameter ........................................................................\
.......................
Piston Diameter ........................................................................\
..........................................
Piston Ring End .Gap ........................................................................\
...................................
............................................ ................................... Piston Ring-to-Groove Clearance ......
Piston Pin Diameter ........................................................................\
.....................................
Connecting Rod Large End Bore ........................................................................\
................
Valve Stem Diameter ........................................................................\
..................................
Flywheel Inspection ........................................................................\
....................................
............................................... Flywheel Inspection - Vehicles With: Dual Mass Flywheel
Cylinder Head Distortion ........................................................................\
.............................
Cylinder Block Distortion ........................................................................\
.............................
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303-004 Engine System - General Information 303-00-4
DIAGNOSIS AND TESTING
Engine
Special Tool(s)
Socket, Spark Plug
303-499
I Adhesive - Loctite 243 I WSK-M2G349A7 I
Materials
1. Verify the customer concern by operating the
system.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
k.
Name S~ecification
Leaks from oil carrying
components or basic engine.
E47332
&
21211
CHECK for cracks in oil
carrying components of the
basic engine by means of a
leak test. INSTALL new
components or seals as
necessary.
2006.0 Fiesta 1212006 GI 52554en
Compression Test Adapter
303-1 052
Pliers, Valve Stem Seal
303-508
4. If the cause is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart Symptom Possible Sources Action
Visual
Inspection Chart
Loss of oil Mechanical
- Coolant
leaks
- Oil leaks
- Fuel system leaks
- Visibly damaged or
worn parts
- Loose or missing
nuts or bolts Electrical
- Fuse(s)
- Loose
or corroded
connector(s)
- Powertrain control
module
- Damaged or worn
switch(es)
Oil leaks on components that
are
eithei coated in oil them-
selves or on components local
to them.
Internal or external leak at the
oil cooler.
Leak at the crankshaft seal.
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
CHECK for evidence of oil
leaks on components. Use an
ultraviolet (UV) leak tester if an
oil leak is not evident, INSTALL
new gaskets or components as
required.
CHECK the coolant expansion
tank for a film of oil on the
coolant surface. INSTALL a
new oil cooler or oil cooler
gasket.
INSTALL a new crankshaft
seal.
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303-00-5 Engine System - General Information 303-00-5
DIAGNOSIS AND TESTING
Symptom
Oil consumption
Possible Sources Action
Use of the wrong type of
engine oil.
Faulty positive crankcase vent-
ilation (PCV) system.
- Hoses or ventilation or
breather valves are blocked.
This causes excessive
pressure in the crankcase
which causes more oil to
enter the combustion
chamber.
- PCV oil separator is faulty
and engine oil can enter the
combustion chamber
through the intake manifold.
Turbocharger seals (diesel
engine only).
DETERMINE the last type of
engine oil used and compare
with the specification. Change
the engine oil to the specifica-
tion.
CHECK if the PCV system is
operating correctly and repair
as necessary. REFER to:
Engine Emission Control (303-
08 Engine Emission Control
- 1.3L Duratec-8V
(Rocam)/l.25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V
(Sigma)/l .6L Duratec-1 6V
(Sigma), Diagnosis and
Testing),
Engine Emission Control (303-
08 Engine Emission Control
- 2.OL Duratec-HE (M14),
Diagnosis and Testing),
Engine Emission Control
-
Vehicles With: Vacuum
Exhaust Gas Recirculation
(EGR) Valve (303-08 Engine
Emission Control
- 1.4L
Duratorq-TDCi (DV) Diesel,
Diagnosis and Testing),
Engine Emission Control (303-
08 Engine Emission Control
- 1.6L Duratorq-TDCi (DV)
Diesel, Description and
Operation).
INSTALL a new turbocharger.
REFER to:
Turbocharger (303-04 Fuel
Charging and Controls
-
Turbocharger - I .4L
Duratorq-TDCi (DV) Diesel,
Removal and lnstallation),
Turbocharger
- I .6L Duratorq-
TDCi (DV) Diesel (303-04
Fuel Charging and Controls
- Turbocharger - I .6L
Duratorq-TDCi (DV) Diesel,
Removal and lnstallation).
2006.0 Fiesta 1212006 GI 52554en
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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
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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.
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303-00-1 4 Engine System - General Information 303-00-1 4
DIAGNOSIS AND TESTING
Symptom
Possible Sources
Action
Timing belt or timing chain
incorrectly tensioned.
CHECK the timing belt or
timing chain tension. INSTALL
a new timing belt or timing
chain as necessary. REFER to:
Timing Belt (303-01 Engine
-
I .25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 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
-
I .6L Duratorq-TDCi (DV)
Diesel, In-vehicle Repair).
Noisy running or engine noise
Engine components
- Pistons
- Piston rings
- Connecting rod big end,
main bearing or thrust
bearing journals
- Connecting rods bent or
damaged.
CHECK the engine compon-
ents for wear or damage. Make
sure all components are within
specification. INSTALL new
components as necessary.
Engine - Oil Leaks
NOTE: Before installing new gaskets or seals, make
sure that the fault is clearly established.
If the oil leak cannot be identified clearly by a visual
inspection, carry out an ultraviolet
(UV) test:
Ultraviolet (UV) Testing
1. Clean the engine and transmission with a
suitable cleaning fluid.
2. Pour the UV-test fluid in accordance with the
quantity specified by the manufacturer through
the oil filler neck into the engine and install the
oil filler cap.
A WARN1NG:Vehicles with manual transaxle,
shift the transaxle into Neutral. Failure to
follow this instruction may result in
personal injury.
3. Start the engine and let it run for about five
minutes. 4.
Switch off the engine.
N0TE:lf no leak can be found, road test the vehicle
under various loads and check the engine for leaks
again.
5. Check the engine for oil leaks using a suitable
UV lamp.
'
6. Rectify any leaks found and check the engine
for oil leaks.
Measure the compression pressure
N0TE:The powertrain control module (PCM)
receives an error message when the fuel pump
relay is removed or electrical components are
disconnected. This error message must be deleted
from the fault memory using WDS after completing
the compression test.
(' ,
'I N0TE:Valve clearance must be set correctly before
performing a compression test. Make sure the
engine is at the normal operating temperature.
2006.0 Fiesta 1212006 GI 52554en
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303-00-20 Engine System - General Information 303-00-20
DIAGNOSIS AND TESTING
I9 Install the engine upper cover. Measure the compression pressure
2l Raise and support the vehicle. REFER to: - 1.25L Duratec-1 6V
(1 00-02 Jacking and Lifting) 6V (sigrna)/l .GL (
Jacking (Description and Operation),
Lifting (Description and Operation).
2l. Install the glow plug relay.
22 Install the radiator undershield.
23, Install the engine undershield.
Z. Lower the vehicle.
25 Reset the PCM fault memory.
I. Open the central junction box (CJB) and remove
the
fuel pump relay.
N0TE:The engine will start, run for a few seconds
and then stop.
2. Start the engine.
3. Remove the air
cleaner.
REFER to: Air Cleaner - 1.25L Duratec-1 6V
(Sigma)/l.4L Duratec-1 6V (Sigma)ll .6L ( Duratec-I 6V (Sigma) (303-1 2 Intake Air
Distribution and
Filtering, Removal and
Installation).
4. Disconnect the electronic ignition (El) coil
connector from the El coil.
- -- - - -
2006.0 Fiesta 1212006 GI 52554en
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