TM 9-2320-365-20-1
2-76
3.
Dirty or clogged fuel
filters will cause
engine to stall at low
rpm.
NO
YES
Are primary and
secondary fuel filters
clean and clear
of debris?
YES
4.
NO
Faulty transfer pump.
Faulty fuel pressure
regulating valve.
Dirty fuel filters.
Faulty transfer pump.
Faulty fuel pressure
regulating valve.
Is outlet pressure
of fuel transfer
pump 10 - 65 psi.
TEST OPTIONS
REASON FOR QUESTION
TEST OPTIONS
Air cleaner OK.
Engine oil level and
condition OK.
Air system OK.
Fuel hoses OK.
No air in fuel system.
Air cleaner OK.
Engine oil level and
condition OK.
Air system OK.
Fuel hoses OK.
No air in fuel system.
Fuel filters OK.
KNOWN INFO
POSSIBLE PROBLEMS
KNOWN INFO
POSSIBLE PROBLEMS
REASON FOR QUESTION
Fuel Pump Test
or STE/ICE-R Test #50
Remove and inspect
Low fuel pressure from
fuel transfer pump will
cause engine to stall at
low rpm.
Replace fuel
filter (para 4-14).
Notify DS Maintenance.
a4. ENGINE STALLS AT LOW RPM (CONT)
