TEST OPTIONS
REASON FOR QUESTION
4.
Visual inspection
KNOWN INFO
This question eliminates
possible problems and
determines where
troubleshooting continues.
Does fuel flow from
fuel/water separator?
TEST OPTIONS
REASON FOR QUESTION
Visual inspection
5.
Does fuel flow from
fuel transfer hose?
KNOWN INFO
POSSIBLE PROBLEMS
NO
YES
NO
b1. ENGINE CRANKS BUT DOES NOT START OR ENGINE STALLS AFTER STARTING (CONT)
YES
Replace fuel transfer
hose (para 4-9).
TM 9-2320-365-20-1
2-106 Change 1
Faulty fuel transfer hose.
Faulty fuel transfer pump.
Faulty fuel tubes.
Faulty fuel filter.
Faulty fuel pressure
regulating valve.
Faulty orifice tube assembly.
Faulty fuel supply hose.
Faulty fuel tank.
Faulty fuel/water separator.
Faulty cylinder head.
POSSIBLE PROBLEMS
Malfunction in fuel system.
Engine cranking speed OK.
Fuel return hose OK.
Faulty fuel transfer hose.
Faulty fuel transfer pump.
Faulty fuel tubes.
Faulty fuel filter.
Faulty fuel pressure
regulating valve.
Faulty orifice tube assembly.
Faulty cylinder head.
Malfunction in fuel system.
Engine cranking speed OK.
Fuel return hose OK.
Fuel supply hose OK.
Fuel tank OK.
Fuel/water separator OK.
If fuel does not flow from fuel
transfer hose, fuel transfer
hose is faulty.
Go to step 12 of this fault.
