Isuzu 4LE2 - Cause of Failure and Corrective Action

6-2
IN CASE OF EMERGENCY
Cause of Failure and Corrective Action
Dependably performing inspections and maintenance prevents faults. Make sure to
perform periodic inspections and maintenance. Also, if a small problem is found, take
an immediate action for it before it leads to a bigger problem.
If any of the failures listed below occurs, perform inspection and take action following
the table.
If a repair cannot be performed by yourself, the corrective action shown in the table
does not eliminate the problem or a failure location cannot be identified, contact the
nearest Isuzu Distributor.
ADVICE
in the "Corrective Action" column indicates that the failure requires a repair
or adjustment, so contact the nearest Isuzu Distributor.
•
Symptom Cause Corrective Action
Reference
Page
Engine
does not
start
Starter
does not
rotate or
rotation is
weak
Battery is running out Charge or replace 6-5
Disconnection,
looseness, or corrosion of
the battery terminals
Repair the corroded area,
and then tighten securely
5-35
Starter ground wire
terminal detached, loose,
or corroded
Repair the corroded area,
and then tighten securely
―
Engine oil viscosity is too
high
Replace it with oil with
appropriate viscosity
4-3
Starter or electrical
system faulty
―
Starter
turns over
No fuel
Check that there is no fuel
leakage and refuel
6-7
Air intrusion in the fuel
system
Remove the air 5-23
Clogging of the fuel filter
Remove moisture and
replace the element
5-22
5-24
Fuel is frozen
Warm up the fuel pipe
with hot water, or wait
until the air temperature
rises
―
Failure of the supply
pump
―
Failure of the engine
control system
―
Preheating system faulty ―
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