3-1
SECTION 3
TROUBLE SHOOTING
INDICATION/TROUBLE
POSSIBLE CAUSES
REFERENCE
SECTION
3.1
DIESEL ENGINE
3.1.1
Engine Will Not Start
Starter motor will not crank or
low cranking speed
Battery insufficiently charged
Battery posts dirty or defective
Bad electrical connections at starter
Starter motor malfunctions
Starter solenoid defective
Open starting circuit
Incorrect grade of lubricating oil
Check
Check
Check
3.1.3
Engine Manual
3.1.4
1.4
Starter motor cranks but engine
fails to start
No fuel in tank
Air in fuel system
Water in fuel system
Plugged fuel filter
Plugged fuel lines to injectors
Fuel control operation erratic
Glow plugs defective
Fuel solenoid defective
Fuel pump malfunction
Check
4.2
Drain sump
Replace
Check
Engine Manual
4.3.8
Engine Manual
4.2 or 4.3.7
Starter cranks, engages, but dies
after a few seconds
Engine lube oil too heavy
Voltage drop in starter cable(s)
1.4
Check
3.1.2
Engine
Starts Then Stops
Engine stops after several
rotations
Fuel supply restricted
No fuel in tank
Leak in fuel system
Faulty fuel control system
Fuel filter restricted
Injector nozzle(s) defective
Injection pump defective
Air cleaner or hose restricted
Safety device open
Open circuit to run solenoid
Fuel pump malfunction
Check
Check
Check
Engine Manual
Replace
Engine Manual
Engine Manual
4.3.5
1.5
Check
4.2 or 4.3.7
3.1.3
Starter Motor Malfunction
Starter motor will not crank or
turns slowly
Battery insufficiently charged
Battery cable connections loose or oxidized
Battery cables defective
Starter brushes shorted out
Starter brushes hang up or do not make contact
Starter solenoid defective
Switch defective
Engine lube to heavy
Check
Check
Replace
Engine Manual
Engine Manual
Engine Manual
Replace
1.4
