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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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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
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Page 448 of 1226
303-00-26 Engine System - General Information 303-00-26
DIAGNOSIS AND TESTING
9. N0TE:lnstall a new oil pressure switch
washer.
Install the oil pressure switch.
10 Connect the oil pressure switch electrical
connector to the oil pressure switch.
11. Lower the vehicle.
Measure the oil ressure (Engine - 1.6L
Duratorq-TDCi &v) Diesel)
2. Remove the oil pressure switch.
3. Attach the oil pressure gauge with the oil
pressure gauge connector.
4. N0TE:Measure the oil pressure at the
specified engine speed. Measure the oil
pressure at an oil temperature of
125°C.
N0TE:Measure the oil pressure at idle speed and
at
2000 rpm.
Check the oil pressure.
5. Detach the oil pressure gauge and the oil I. Disconnect the oil pressure switch electrical
pressure gauge connector.
connector from the oil pressure switch. (',
6. Coat the oil pressure switch with adhesive.
2006.0 Fiesta 1u2oos GI 52554en
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Page 449 of 1226
303-00-27 Engine System - General Information 303-00-27
DIAGNOSIS AND TESTING
7. Install the oil pressure switch.
i 8. Connect the oil pressure switch electrical
2. Disconnect the oil pressure switch electrical
connector from the oil pressure switch.
connector to the oil pressure switch.
3. Remove the oil pressure switch.
Measure the oil
1.25L
(Sigma))
Duratec-1 6V
N0TE:The oil pressure depends on various factors
(engine speed, oil temperature, oil viscosity, extent
of oil filter contamination).
N0TE:Measure the oil pressure at the specified
engine speed.
1. Raise and support the vehicle. REFER to:
(1 00-02 Jacking and Lifting) 4. Attach the oil pressure gauge with the oil
pressure gauge connector to the oil pressure
Jacking (Description and Operation),
switch bore, and position it to allow reading from
Lifting (Description and Operation). above.
5. Lower the vehicle.
2006.0 Fiesta 1212006 GI 52554en
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Page 450 of 1226

303-00-28 Engine System - General Information 303-00-28
DIAGNOSIS AND TESTING
6. N0TE:Measure the oil pressure at an oil
temperature of 80°C.
N0TE:Oil pressure at 2000 rpm: 3.5 bar.
Measure the oil pressure.
7. Raise and support the vehicle. REFER to:
(I 00-02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
8. Detach the oil pressure gauge and connector
from the oil pressure switch bore.
9. Coat the oil pressure switch with adhesive.
IQ Install the oil pressure switch. 11.
Connect the oil pressure switch electrical
connector to the oil pressure switch.
I2 Lower the vehicle.
Measure the oil pressure (Engine - 1.3L
Duratec-8V (Rocam))
N0TE:The oil pressure depends on various factors
(engine speed, oil temperature, oil viscosity, extent
of oil filter contamination).
N0TE:Measure the oil pressure at the specified
engine speed.
1. Raise and support the vehicle. REFER to:
( I (1 00-02 Jacking and Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
2. Disconnect the oil pressure switch electrical
connector from the oil pressure switch.
2006.0 Fiesta 1uzoo6 GI 52554en
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Page 451 of 1226
303-00-29 Engine System - General Information 303-00-29
DIAGNOSIS AND TESTING
3. Remove the oil pressure switch.
( 4. Attach the oil pressure gauge with the oil
pressure gauge connector to the oil pressure
switch bore, and position it to allow reading from
above.
5. Lower the vehicle. 7.
Raise and support the vehicle. REFER to:
(1 00-02 Jacking and Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
8. Detach the oil pressure gauge and connector
from the oil pressure switch bore.
9. Coat the oil pressure switch with sealant
adhesive.
IQ Install the oil pressure switch.
6. N0TE:Measure the oil pressure at an oil
temperature of 80°C.
N0TE:OiI pressure at idle speed (750 rpm): 0.95
bar. 11. Connect the oil pressure switch electrical
N0TE:Oil pressure at 2500 rpm: 2.7 bar. connector to
the oil pressure switch.
Measure the oil pressure.
I2 Lower the vehicle.
2006.0 Fiesta 1212006 GI 52554en
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Page 452 of 1226

303-00-30 Engine System - General Information 303-00-30
DIAGNOSIS AND TESTING
Measure the oil ressure (Engine
- 2.OL
Duratec-HE (MI 1 ))
I. Raise and support the vehicle. REFER to:
(I 00-02 Jacking and Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
2. Disconnect the oil pressure switch electrical
connector from the oil pressure switch.
3. Remove the oil pressure switch.
6. N0TE:OiI pressure at 2000 rpm: 3.5 bar.
Measure the oil pressure.
7. Raise and support the vehicle. REFER to:
(1 00-02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
8. Detach the oil pressure gauge and connector
from the oil pressure switch bore.
9. Coat the oil pressure switch with adhesive.
4. Attach the oil pressure gauge
(GV 2134) with ICL Install the pressure switch=
the oil pressure gauge connector to the oil
pressure switch bore, and position it to allow
reading from above.
5. Lower the vehicle.
2006.0 Fiesta 1212006 GI 52554en
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Page 453 of 1226
303-00-31 Engine System - General Information 303-00-31
DIAGNOSIS AND TESTING
11. Connect the oil pressure switch electrical
connector to the oil pressure switch.
12 Lower the vehicle.
Valve train analysis - static (engine off)
Remove the valve cover.
Check all components of the valve train for damage
and wear. Make sure that only original components
are installed and that all nuts and bolts are
tightened to the specified torque.
2006.0 Fiesta 1212006 GI 52554en
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