Engine Iveco C10/C13/C78/Cursor 13/Cursor 78. Instruction - page 58

54

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IO
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IN

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U

STRIAL

APPL

IC

ATIO

N

F3
A
C

U

R

SO
R

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NG

IN

E

S

B

as

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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

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IN

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STRIAL

APPL

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N

55

F3
A
C

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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

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