Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Instruction - page 58
54
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
F3
A
C
U
R
SO
R
E
NG
IN
E
S
B
as
e
-
A
p
ril
2006
P
rin
t
P
2D
32C001
E
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE RELATED
ANOMALIES
RECOMMENDED TESTS
OR MEASURES
REMARKS
9.5
ON steady
ECU power supply is cut
out too often (5 times):
faulty main relay or engine
stop by means of battery
disconnect
switch.
Reduced
engine
max.
speed and power.
Check
main
relay,
cabling
and
connections. Investigate whether the
driver switches the engine off in other
ways than by turning the key.
The problem will be solved by itself the next
time the switch-off procedure and data storing
are performed correctly.
9.6
ON steady
ECU
stop
test
failure.
Reduced engine speed and
power.
This is a test procedure
inherent to the control unit
for power stage control. It
might
store
other
errors
concerning the various power
stages of actuators.
Contact Help Desk for replacement (if
any) of the control unit.
PA
RT
3
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
55
F3
A
C
U
R
SO
R
E
NG
IN
E
S
P
rin
t
P
2D
32C001
E
B
as
e
-
A
p
ril
2006
SIGNALLED
ANOMALY
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
RELATED
ANOMALIES
RECOMMENDED
TESTS OR
MEASURES
REMARKS
The battery goes flat
quickly.
-
-
Pre-heating
resistor
powered continuously.
Local overheating.
The engine will stop or
won’t start.
-
-
Fuel pre-filter clogged.
Difficult start when the
engine is either hot or
cold.
-
-
The 3.5 bar valve on fuel
return is stuck open.
Slight overheating.
-
-
Either 0.3 bar tank return
valve
or
return
piping
clogged.
After the new vehicle
has been delivered, the
engine will stop after a
short
operation
time.The tank holds a
lot of fuel; all the rest is
O.K.
-
-
Reversed tank suction /
return pipes.
The engine is fed by the
return pipe, the suction
of which in the tank is
lower. When the pipe
sucks no more, the
engine will stop.
Reduced
power
/
difficult
engine
maneuverability.
-
-
Injection
system
/
the
engine operates with one
cylinder failing:
- injector plunger seizure;
- valve rocker arm seizure.
Overheating
Engine test: cylinder efficiency test. If
the trouble is not related to electric
components (Blink code 5.x), the
rocker arm holder shaft needs be
disassembled. Check the rocker arm
roller and bushing as well as the
respective cam.
Fuel
consumption
increase.
-
-
Air filter clogging with no
signal from the warning
light on the instrument
board.
Smoke.
Check the cabling, connections and
component.
56
SE
C
T
IO
N
3
-
IN
D
U
STRIAL
APPL
IC
ATIO
N
F3
A
C
U
R
SO
R
E
NG
IN
E
S
B
as
e
-
A
p
ril
2006
P
rin
t
P
2D
32C001
E
SIGNALLED
ANOMALY
BLINK
CODE
EDC
WAR-
NING
LIGHT
POSSIBLE
CAUSE
POSSIBLE
RELATED
ANOMALIES
RECOMMENDED
TESTS OR
MEASURES
REMARKS
The engine does not
reach the other speeds
under load conditions.
-
-
The
boosting
pressure
sensor provides too high
values, which, in any case,
fall within the range.
Smoke.
The driver feels that the
engine is not working
correctly like it did
before.
-
-
Impaired
hydraulic
performance of an injector.
Engine test: check-up
Replace the injector of
the cylinder in which
Modus detects lower
performance
levels
(compared
with
the
others) only after verify-
ing that the control
rocker arm adjustment is
correct.
The driver feels that the
engine is not working
correctly like it did
before.
-
-
Wrong adjustment of an
injector control rocker arm.
Engine test: check up.
Perform correct adjust-
ment, then repeat the
engine test.
The engine operates
with
five
cylinders;
noise (knock).
-
-
Plunger seizure.
Possible overheating.
Engine test: cylinder efficiency.
Replace the injector of
the cylinder in which the
diagnosis instrument de-
tects lower performance
levels (compared with
the others).
Replace the injector of
the cylinder in which the
diagnosis instrument de-
tects lower performance
levels (compared with
the others).
-
-
Wrong adjustment of the
injector control rocker arm
(excessive
travel)
with
impact on the plunger on
the nozzle.
Possible mechanic damage to
the areas surrounding the
injector.
Engine test: cylinder efficiency.
Replace the injector of
the cylinder in which the
diagnosis instrument de-
tects lower performance
levels (compared with
the others).
The engine will stop or
won’t start again.
-
-
Presence of air in the fuel
supply circuit.
It might even not switch off; it
might
have
operation
oscillations, or start, yet with
difficulty and after making
many attempts.
Bleed air.
PART FOUR - MAINTENANCE PLANNING
SECTION 3 - INDUSTRIAL APPLICATION
57