58
Problem
Suspected cause
Action
En
gine
d
oe
s n
ot st
art
Starter motor
won’t crank
or speed is low
1. Battery output is weak
2. Battery is deteriorated
3. Battery terminal is OFF or loose
4. Battery terminal is corroded
5. Starter switch or relay is defective
6. Starter motor is defective
7. ECM (Engine Controller) is defective
1. Check battery fluid or charge
2. Replace Battery
3. Fix/Tighten terminal
4. Clean terminal
5. Contact distributor or dealer for repair
6. Contact distributor or dealer for repair
7. Contact distributor or dealer for repair
Starter motor
cranked but
engine does
not start
1. Fuel is insufficient
2. Fuel filter is clogged
3. Water is interfused in fuel line
4. Air is interfused in fuel line
5.Mistake of connecting with external tank
6.Mistake of turning 3way fuel valve lever
7. Fuel pump defective
8. Emergency operation/Fault detection
1. Add fuel
2. Clean/Replace fuel filter
3. Drain water in fuel filter or fuel tank
4. Extract the air
5.Check fuel piping
6.Check 3way fuel valve
7-1.Check/Replace fuse
7-2.Check/Replace fuel pump
8. Contact distributor or dealer for repair
<Ambient
temperature
falls down below
32
゚
F (0°C) >
1. Fuel is frozen
2. Water in fuel line is frozen
3. Pre-heater is defective
1. Use winterized fuel
2. Drain water in fuel line
3. Contact distributor or dealer for repair
Engine starts but
stalls immediately
1. Fuel filter is clogged
2. Water is interfused in fuel line
3.Air is interfused in fuel line
4.Mistake of connecting with external tank
5. Air filter element is clogged
6. Lubricant oil is insufficient
7. Emergency operation/Fault detection
1. Clean/Replace fuel filter
2. Drain water in fuel filter or fuel tank
3. Extract the air
4.Check fuel piping
5. Check/Replace air filter element
6. Add lubricant oil
7. Contact distributor or dealer for repair
Engine oil pressure
is low
1. Lubricant oil is insufficient
2. Oil filter is clogged
3. Oil Pressure switch is defective
4. Oil pressure meter is defective
5
.
Wrong oil is used
1. Add lubricant oil
2. Replace oil filter
3. Contact distributor or dealer for repair
4. Contact distributor or dealer for repair
5. Change to proper kind and viscosity oil
Overheated
1. Engine thermostat is defective
2. Water temp sensor is defective
3. Water temp meter is defective
4. Fan belt tension is weak
5. Coolant is insufficient
6. Radiator core is clogged
1. Contact distributor or dealer for repair
2. Contact distributor or dealer for repair
3. Contact distributor or dealer for repair
4. Check/Adjust fan belt
5. Check/Add coolant
6. Clean radiator core
Black smoke
comes out from Muffler
1. Air filter element is clogged
2. Fuel injection nozzle is defective
3. Improper fuel is used
4.SCR system is faulty
1. Check/Change air filter element
2. Contact distributor or dealer for repair
3. Change to clean fuel
4. Contact distributor or dealer for repair
Содержание DGK125F
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