2007 FORD FIESTA oil pressure

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 ........................................................................\
.............................
procarmanuals.com

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
procarmanuals.com

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
procarmanuals.com

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
procarmanuals.com

303-00-21 Engine System - General Information 303-00-21
DIAGNOSIS AND TESTING
N0TE:Twist the spark plug connectors slightly 8. Using the special tool, install the spark plugs.
before disconnecting them. Pull on the connector
and not on the cable.
5. Disconnect the spark plug connectors.
6. Using the special tool, remove the spark plugs.
N0TE:Operate the starter motor with wide open
throttle until the reading on the compression tester
stops rising.
7. Carry out the measurement in accordance with
the instructions supplied with the measuring
device on every cylinder using a suitable
compression pressure recorder with the suitable
adapter.
9. Connect the spark plug connectors.
10 Connect the El coil electrical connector to the
El coil.
2006.0 Fiesta 1212006 GI 52554en
TIE0030138
QI!J!J!J~QUQI!J!J aaaaaaaaaa aBQnQIamman aBBaaaBBt3B a!JQ!JaLlnQma aaaaaaBBaf3 aaQaaQmQDa ~a~f3~B~~~B .a q q q L! q gD
procarmanuals.com

303-00-22 Engine System - General Information 303-00-22
DIAGNOSIS AND TESTING
11. Install the fuel pump relay.
I2 Install the air cleaner.
REFER to: Air Cleaner - 1.25L Duratec-1 6V
(Sigma)/l.4L Duratec-16V (Sigma)/l .6L
Duratec-I 6V (Sigma) (303-1 2 Intake Air
Distribution and
Filtering, Removal and
Installation).
13 Using worldwide diagnostic system (WDS), clear
the fault codes from the PCM.
Measure the compression ressure
(Engine
- 1 .3L Duratec-8V P Rocam)) N0TE:Twist the spark plug connectors slightly
1. Open the
central junction box (CJB) and remove
the
fuel pump relay.
before disconnecting them. Pull on the connector
and not on the
cable.
5. Disconnect the spark plug connectors.
N0TE:The engine will start, run for a few seconds
and then stop. 6. Remove the spark plugs.
2. Start the engine.
3. Remove the air
cleaner.
REFER to: Air Cleaner - 1.3L Duratec-8V
(Rocam) (303-12 Intake Air Distribution and
Filtering, Removal and Installation).
N0TE:Operate the starter motor with wide open
throttle until the reading on the compression tester
stops rising.
7. Carry out the measurement in accordance with
the instructions
supplied with the measuring
device on every
cylinder using a suitable
4. Disconnect the electronic ignition (El) coil compression pressure recorder
with the suitable (:
electrical connector from the El coil. adapter.
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com

303-00-24 Engine System - General Information 303-00-24
DIAGNOSIS AND TESTING
N0TE:Twist the spark plug connectors slightly
before disconnecting them. Pull on the connector
and not on the cable.
5. Using the special tool, remove the spark plug
connectors.
6. Using the special tool, remove the spark plugs.
N0TE:Operate the starter motor with wide open
throttle until the pointer on the measuring device stops rising.
7. Carry out the measurement in accordance with
the instructions supplied with the measuring
device on every cylinder using compression
pressure recorder 623.000.1 01 with the suitable
adapter.
8. Using the special tool, install the spark plugs.
9. Install the spark plug connectors. k
1Q Connect the El coil electrical connector to the
El coil.
TIE
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com

303-00-25 Engine System - General Information 303-00-25
DIAGNOSIS AND TESTING
11. Install the fuel pump relay.
-. 12 Install the air cleaner.
REFER to: Air Cleaner
- 2.OL Duratec-HE (M14)
(303-12 Intake Air Distribution and Filtering,
Removal and Installation).
13 Reset the PCM fault memory.
Measure the oil ressure (Engine - 1.4L
Duratorq-TDCi PDv) Diesel)
N0TE:The oil pressure depends on various factors
(engine speed, oil temperature, oil viscosity, extent
4m Attach the oil pressure gauge with the oil of oil filter contamination).
pressure gauge connector, and position it to
N0TE:Measure the oil pressure at the specified allow reading
from above.
engine speed.
5. Lower the vehicle.
I. Raise and support the vehicle. REFER to:
(1 00-02 Jacking and Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
6. N0TE:Measure the oil pressure at an oil
temperature of 410°C.
N0TE:OiI pressure at 2000 rpm: 2.3 to 3.7 bar.
Measure the oil pressure.
2. Disconnect the oil pressure switch electrical
7. Raise and support the vehicle. Engine
- 1.4L connector from the oil pressure switch.
Duratorq-TDCi (DV) Diesel
3. Remove the oil pressure switch.
Discard the washer.
8. Remove the oil pressure gauge and the oil
pressure gauge connector.
2006.0 Fiesta 1212006 GI 52554en
procarmanuals.com