99
9 Troubleshooting
Fault finding table
3 Engine cranks but will not start, smoke from exhaust
Possible fault
Remedy
Faulty injector/injection pump.
Check, replace if required.
Air in fuel system.
Check and bleed.
Wrong fuel quality or contami-
nated fuel.
Check fuel. Drain and flush fuel
tank. Replace with new fuel.
Incorrect lube oil SAE class or
quality for ambient temperature.
Replace.
Insufficient intake air.
Check.
Intake air filter clogged .
Clean/replace
Incorrect valve clearance.
Adjust.
4 Engine starts but runs unevenly (rough idling) or stalls
Possible fault
Remedy
(Nearly) Empty fuel tank.
Refill.
Fuel supply line restricted.
Check / clean.
Fuel filter clogged with water
and/or contamination.
Check or replace.
Vent line of fuel supply tank
clogged.
Check / clean.
Faulty injector/injection pump.
Check, replace if required.
Leaking fuel supply line or fuel
injection line.
Check / replace.
Air in fuel system.
Check and bleed.
Wrong fuel quality or contami-
nated fuel.
Check fuel. Drain and flush fuel
tank. Replace with new fuel.
Low battery voltage
Recharge /replace
Exhaust restricted.
Check.
Incorrect valve clearance.
Adjust.
Idle setting too low.
Check/ adjust.
Compression too low.
Check.
ECU has detected s system error
and activates an equivalent
speed.
Check error according to error
code and eliminate fault.
Summary of Contents for D-LINE VD4.120
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