Iveco Daily. Manual — part 126
F1A ENGINE
D
AILY
482
Base - May 2004
!
The possible trouble already identified by the control unit, described in the 1
st
Section, is not repeated here (e.g., the
engine cuts out as a result of defect 8.1).
If there are errors stored in the control unit memory, refer to the 1
st
troubleshooting section.
- The engine cuts out or fails to start.
- The engine fails to start (considerable exhaust smoke).
- The engine starts with difficulty.
- The engine fails to reach its top performance.
2
nd
Section
SYMPTOMS
The second section describes possible trouble that is not identifiable by the control unit and is
SPECIFIC TO THE COMMON RAIL SYSTEM AND THE NEW HW ENGINE
HYDRAULIC
ELECTRIC
MECHANICAL
other than conventional defects
(the aim is to guide the diagnostic approach to a new system, not to restate basic concepts that are
considered to have already been acquired by the repairer).
F1A ENGINE
483
D
AILY
Base - May 2004
F1A ENGINE
D
AILY
484
Base - May 2004
F1
A
E
NG
INE
485
D
AI
LY
B
as
e
-
M
ay
2004
P
rin
t
603.
93.
281
ENGINE
SYMPTOM
SYSTEM REACTION
POSSIBLE CAUSE
TESTS OR RECOMMENDED
ACTION
NOTES
The engine cuts out or
fails to start.
The EDC indicator light fails to
come on.
The starter motor turns but
the engine fails to start.
EDC
control
unit
not
powered: fuse blown.
Check fuse No. 23 (25A).
If the fuse has blown, find and eliminate
the cause of the overload before
replacing it.
The engine cuts out or
fails to start.
The EDC indicator light fails to
come on.
The starter motor turns but
the engine fails to start.
EDC
control
unit
not
powered: the main relay is not
powered.
Check the wiring upstream from the
main relay to find any break in the
circuit.
The engine cuts out or
fails to start.
The
EDC
control
unit
is
powered, the starter motor
turns but the engine fails to start.
The rail pressure does NOT
reach 200 bar.
Air intake in the supply circuit
between the tank and motor
pump.
Check the integrity of the pipe and
check that the quick couplings on the
CILC (fuel level indicator assembly) and
on the motor pump inlet are fitted
properly.
Replace any non-conforming parts.
The engine cuts out or
fails to start.
The
EDC
control
unit
is
powered, the starter motor
turns but the engine fails to start.
The rail pressure does NOT
reach 200 bar.
Pre-filter clogged.
Inspect and replace the pre-filter if any
debris is found inside.
The pre-filter is transparent and any debris is
easy to see.
The engine cuts out or
fails to start.
The EDC control unit is
powered, the starter motor
turns but the engine fails to
start.
The rail pressure does NOT
reach 200 bar.
Low-pressure pipe between
motor
pump
and
high-pressure
pump
inlet
choked or with large leak.
Inspect the pipe and replace the
relevant section.
The engine cuts out or
fails to start.
The EDC control unit is
powered, the starter motor
turns but the engine fails to
start.
The rail pressure does NOT
reach 200 bar.
Fuel filter greatly clogged
(within certain limits it only
involves difficult starting).
Replace the filter.
If the filter clogging indicator system has not
worked, check the relevant electric circuit and
restore its operation.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст