Engine Cranks But Will Not Start, Smoke From Exhaust; Engine Starts But Runs Unevenly (Rough Idling) Or Stalls - Vetus D-LINE VD4.120 Operation Manual

9 Troubleshooting

3 Engine cranks but will not start, smoke from exhaust

Possible fault
Faulty injector/injection pump.
Air in fuel system.
Wrong fuel quality or contami-
nated fuel.
Incorrect lube oil SAE class or
quality for ambient temperature.
Insufficient intake air.
Intake air filter clogged .
Incorrect valve clearance.
Remedy
Check, replace if required.
Check and bleed.
Check fuel. Drain and flush fuel
tank. Replace with new fuel.
Replace.
Check.
Clean/replace
Adjust.

4 Engine starts but runs unevenly (rough idling) or stalls

Possible fault
(Nearly) Empty fuel tank.
Fuel supply line restricted.
Fuel filter clogged with water
and/or contamination.
Vent line of fuel supply tank
clogged.
Faulty injector/injection pump.
Leaking fuel supply line or fuel
injection line.
Air in fuel system.
Wrong fuel quality or contami-
nated fuel.
Low battery voltage
Exhaust restricted.
Incorrect valve clearance.
Idle setting too low.
Compression too low.
ECU has detected s system error
and activates an equivalent
speed.
Fault finding table
Remedy
Refill.
Check / clean.
Check or replace.
Check / clean.
Check, replace if required.
Check / replace.
Check and bleed.
Check fuel. Drain and flush fuel
tank. Replace with new fuel.
Recharge /replace
Check.
Adjust.
Check/ adjust.
Check.
Check error according to error
code and eliminate fault.
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