Is fuel free from water,
debris, and contamination?
2.
TEST OPTIONS
REASON FOR QUESTION
Visual inspection
YES
Replace fuel return
hose (para 4-9).
Notify DS Maintenance.
KNOWN INFO
YES
flush fuel system.
NO
WARNING
Read WARNING
on following page.
3.
Is fuel return hose free
from kinks, blockage,
or damage?
KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
NO
b1. ENGINE CRANKS BUT DOES NOT START OR ENGINE STALLS AFTER STARTING (CONT)
Contaminated fuel may cause
engine to stall after starting.
POSSIBLE PROBLEMS
Malfunction in fuel system.
Engine cranking speed OK.
Fuel transfer hose OK.
Fuel tubes OK.
Fuel filter OK.
Fuel pressure regulating
valve OK.
Orifice tube assembly OK.
Fuel supply hose OK.
Fuel tank OK.
Fuel/water separator OK.
Cylinder head OK.
Fuel contaminant free.
Faulty return hose.
Faulty fuel transfer pump.
If fuel return hose is OK,
fuel transfer pump is faulty.
POSSIBLE PROBLEMS
Malfunction in fuel system.
Engine cranking speed OK.
Fuel transfer hose OK.
Fuel tubes OK.
Fuel filter OK.
Fuel pressure regulating
valve OK.
Orifice tube assembly OK.
Fuel supply hose OK.
Fuel tank OK.
Fuel/water separator OK.
Cylinder head OK.
Fuel contaminated.
Faulty return hose.
Faulty fuel transfer pump.
2-104 Change 1
TM 9-2320-365-20-1
