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Automatic Transmission/Transaxle -
Vehicles With: 4-Speed Automatic
307-01 -30 Transmission (AW81-40) 307-01 -30
DESCRIPTION AND OPERATION
The transmission control unit can be diagnosed
with WDS via the DLC.
Gearshift strategies
Gearshift control
I A I Accelerator pedal position I
I B I vehicle speed 1
The current ratio is selected by the transmission
control unit either in accordance with the
requirements for low fuel consumption or in order
to meet the required driving performance.
The gearshift timing is selected in accordance with
a gearshift map which is programmed into the
control unit as a function of the accelerator pedal
position and the vehicle speed.
For kick-down (accelerator pedal pressed down at
least
95 %) the next lowest gear is selected, as
long as the engine speed allows it. All gearshift
timings are set by the transmission control unit to
the upper shift characteristic. The driver can feel the
kickdown point
in the
accelerator pedal as a slight increase in resistance
to the operation of the pedal.
This is influenced by the following variables:
accelerator pedal position and actuation,
vehicle speed,
brake pedal position,
selector lever position.
The following are actuated:
SSA shift solenoid valve,
SSB shift solenoid valve.
Hill climb mode
When the vehicle is in hill climb mode or towing a
trailer, the transmission control delays gearshifts
to prevent frequent shifting back and forth between
the gears.
2006.0 Fiesta 1u2oos
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Page 1187 of 1226

31 0-00-1 Fuel System - General Information 31 0-OO=l
SECTION 31 0-00 Fuel System - General lnformation
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
DIAGNOSIS AND TESTING
Fuel System - 1.3L Duratec-8V (Rocam)ll.25L Duratec-I 6V (Sigma)/2.0L Duratec-HE
(M14)/1.4L Duratec-1 6V (Sigma)/l .6L
Duratec-1 6V (Sigma) ............................................ 3 1 0-00-2
........................................................................\
......................... Inspection and Verification. 3 1
0-00-2
GENERAL PROCEDURES
Fuel System Pressure Release .................................................................... (23 420 0) 3 1 0-00-3
Fuel Tank Draining
........................................................................\
.................. (23 551 0) 3 1 0-00-4
Quick Release Coupling
........................................................................\
............................. 3 1 0-00-5
................................................... Fuel System Pressure Check - 2.OL Duratec-HE (M14) 31 0-00-1 0
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31 0-00-2 Fuel System - General Information 31 0-00-2
DIAGNOSIS AND TESTING
Fuel System - 1.3L Duratec-8V (Rocam)/l.25L Duratec-1 6V
(Sigma)/2.0L Duratec-HE (M14)/1.4L Duratec-I 6V
(Sigma)/l.GL Duratec-1 6V (Sigma)
lnspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
- Fuel level
- Fuel leak(s)
- Fuel line(s)
- Fuel filter (if
equipped)
- Fuel tank
- Fuel tank filler pipe
- Fuel filler cap
Visual lnspection Chart
- Electrical
connector(s)
- Wiring harness
- Inertia fuel shutoff
(IFS) switch
- Fuel pump module
I Mechanical
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 WDS.
Electrical
-
2006.0 Fiesta 1212006 G348253en
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Page 1189 of 1226
31 0-00-3 Fuel System - General Information 31 0-00-3
GENERAL PROCEDURES
/'
Fuel System Pressure Release(23 420 0)
i
Release
I. WARNINGS:
ADO not smoke or carry lighted tobacco or
open flame of any type when working on or
near any fuel related components. Highly
flammable vapors are always present and
may ignite. Failure to follow these
instructions may result in personal injury.
A~he fuel system remains pressurized for
a long time after the ignition is switched off.
The fuel pressure must be released before
attempting any repairs. Failure to follow this
instruction may result in personal injury.
Remove the fuel pump fuse.
2. Start the engine and allow to idle until the
engine stalls.
3. Crank the engine for approximately five
seconds to make sure the fuel injection
supply manifold pressure has been released.
,1 4. Install the fuel pump fuse.
2006.0 Fiesta 1212006 GI 81 91 en
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Page 1190 of 1226
31 0-00-4 Fuel System - General Information 31 0-00-4
GENERAL PROCEDURES
Fuel Tank Draining(23 551 0)
General Eaui~ment
I Fuel tank draining equipment I
Draining
WARNINGS:
A Do not smoke or carry lighted tobacco or
open flame of any type when working on
or near any fuel related components.
Highly flammable vapors are always
present and may ignite. Failure to follow
these instructions may result in personal
injury.
A The fuel system remains pressurized for a
long time after the ignition is switched off.
The fuel pressure must be relieved before
attempting any repairs. Failure to follow
these instructions may result in personal
injury.
I. Disconnect the battery ground cable. For
additional information, refer to
Section
414-01 [Battery, Mounting and
Cables].
2. Remove the fuel tank filler cap.
3. Using fuel tank draining equipment, drain
the fuel from the fuel tank using a
12.5mm
nylon drain tube.
2006.0 Fiesta 1212006 G210056en
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Page 1191 of 1226

31 0-00-5 Fuel System - General Information 31 0-00-5
GENERAL PROCEDURES
Quick Release Coupling
i 1 General Equipment 2. Disconnect the fuel line quick release
coupling.
Flat-bladed screwdriver
Disconnection
WARNINGS:
A Do not carry lighted tobacco or open flame
of any type when working on or near any
fuel related components. Highly flammable
vapors are always present and can ignite.
Failure to follow these instructions may
result in personal injury.
A This procedure involves fuel handling. Be
prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury. 3.
Disconnect the fuel line quick release
coupling.
1. Pull the fuel line quick release coupling
CAUTI0N:Fuel injection equipment is locking tang.
manufactured to very precise tolerances 2. Push the clip through the fuel line quick
and fine clearances. It is therefore essential release coupling to release the fuel line.
that absolute cleanliness is observed when I
i
working with these components. Always
install blanking plugs to any open orifices
or lines.
N0TE:Fuel supply line connectors are white or are
identified by a white band. Fuel return line
connectors are red or are identified by a red band.
1. Release the fuel system pressure.
For additional information, refer to: Fuel
System Pressure Release (31
0-00 Fuel
Svstem - General Information, General
2. Disconnect the fuel line quick release 4. Disconnect the fuel line quick release
coupling. coupling.
1. Press the fuel line quick release coupling 1. Press the fuel line quick release coupling
locking tangs. locking tangs.
2006.0 Fiesta 1212006 GI 81 92en
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31 0-00-6 Fuel System - General Information 31 0-00-6
GENERAL PROCEDURES
5. Disconnect the fuel line quick release
coupling.
2. Disconnect the fuel line quick release 7. Disconnect the fuel tank vent line quick
coupling. release coupling.
8. Release the fuel line quick release coupling.
-
4 =
b
.-
VUE0014718
- - Press the fuel line quick release coupling
Press the fuel line quick release coupling
locking release collar.
buttons and pull the fuel line to disconnect.
63
E38211
9. Disconnect the fuel line quick release 6. Release the fuel tank vent line quick release
coupling.
Press the fuel tank vent line quick release
coupling locking release collar.
2006.0 Fiesta 1212006 GI 81 92en
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Page 1193 of 1226

31 0-00-7 Fuel System - General Information 31 0-00-7
GENERAL PROCEDURES
10. Using a suitable Flat-bladed screwdriver 2. Disconnect the fuel line from the fuel filter.
release the fuel line quick release coupling
( secondary locking tang.
Connect
11. Operate the fuel line quick release coupling WARNINGS:
primary locking tang.
Push the fuel line quick release coupling
primary locking tang into from the fuel line
quick release coupling.
12. Disconnect the fuel line from the fuel line
quick release coupling.
13. Disconnect the fuel line from the fuel filter.
1 . Press the collar into the connector body.
Do not carry lighted tobacco or open flame
of any type when working on or near any
fuel related components. Highly flammable
vapors are always present and can ignite.
Failure to follow these instructions may
result in personal injury.
A This procedure involves fuel handling. Be
prepared for fuel spillage at all times and
always observe fuel handling precautions.
Failure to follow these instructions may
result in personal injury.
A CAUTI0N:Fuel injection equipment is
manufactured to very precise tolerances
and fine clearances.
It is therefore essential
that absolute cleanliness is observed when
working with these components. Always
install blanking plugs to any open orifices
or lines.
N0TE:Fuel supply line connectors are white or are
identified by a white band. Fuel return line
connectors are red or are identified by a red band.
1. Push the connector on to the fuel filter.
2006.0 Fiesta 1212006 GI 81 92en
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