9. SIMPLE ENGINE TROUBLESHOOTING
This item contents a simple troubleshooting. When a failure takes place on your ISUZU engine, diagnose the
cause referring this troubleshooting. Should the cause of failure cannot be detected or you are unable to
manage the failure consult to your machine supply source or nearest ISUZU engine service outlet.
r Battery discharged.
-I=
Imperfect cable connections.
r
Starter does not turn.
Starter or starter switch failure.
I Safety relay failure.
r Engine stop solenoid return failure.
t-
No fuel in the fuel tank.
Engine do= not start. -
- Starter turns but engine
does not
ignite.
- No fuel injection.
- Clogged fuel filter element. .
- Air in the fuel system.
L
Control rack is stuck at no fuel
position.
Unproper preheating operation.
Glow plug malfunction.
Fuel is injected but
engine does not ignite.
Incorrect injection timing.
Low cylinder compression
pressure.
a
L
Engine stop solenoid incomplete e
Fig. 6
return.
I Engine jgnite but
stall immediately.
- Air in the fuel system.
Improper low idling speed
adjustment.
4.
ISUZU ENGINE AFTER SERVICE
’
(1) lsuzu Engine After Service
Please feel free to contact your ISUZU dealer for periodical
inspection and maintenance.
(2) lsuzu Genuine Parts
The ISUZU genuine parts are identical with those of used in the
engine production,
and accordingly, they are warranted by
ISUZU MOTORS LIMITED.
The ISUZU genuine parts are supplied by the ISUZU distributors
or the authorized parts suppliers. Please designate “ISUZU
Genuine Parts” when you need engine parts.
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