3-1
SECTION 3
TROUBLESHOOTING
3.1 DIESEL ENGINE
INDICATION/
REFERENCE
TROUBLE
POSSIBLE CAUSES
SECTION
3.1.1 Engine Will Not Start
a. Starter motor
Battery insufficiently charged
Charge
will not crank or low
Battery terminal post or battery defective
Check
cranking speed.
Bad electrical connections at starter
Correct
Starter motor malfunctions
3.1.3
Starter motor solenoid defective
Engine Manual
Open starting circuit
3.1.4
Incorrect grade of lubricating oil
1.4.j
b. Starter motor
No fuel in tank
1.3/1.4.g
cranks but engine
Air in fuel system
4.2
fails to start
Water in fuel system
Drain Sump
Plugged fuel filters
Replace
Faulty fuel control operation
4.3.3
Safety relay
Check
Glow plug(s) defective
4.3.6
Plugged fuel lines to injector(s)
Engine Manual
Mechanical lift fuel pump malfunction
Engine Manual
c. Starter cranks,
Engine lube oil too heavy
1.4.j
engages but dies
Voltage drop in starter cable(s)
Check
after a few seconds
3.1.2
Engine Starts Then Stops
a. Engine stops
No fuel in tank
1.3/1.4.g
after several
Faulty fuel control operation
4.3.3
rotations
Fuel filter(s) restricted
Replace
Air cleaner or hose restricted
4.3.5
Safety device open
1.2
Open wiring circuit to fuel solenoid
Check
Fuel solenoid linkage disconnected
4.3.3
Fuel supply restricted
1.4.g/4.2
Mechanical lift fuel pump malfunction
Engine Manual
Oil pressure switch defective
Replace
Leak in fuel system
Check
Injector nozzle(s) defective
Engine Manual
Injection pump defective
Engine Manual
