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TM 9-2320-364-20-2
2-1046
2. ENGINE STARTS BUT MISFIRES, RUNS ROUGH, OR LACKS POWER (CONT).
2.
Replace fuel/water
separator (Para 4-16).
Verify repair, go to
Step 8 of this Fault.
YES
NO
Turn signals operate indicating
10 to 14 vdc are present on
wires 240 and 241 at battery
No. 4.
Fuel primary pump operates.
Fuel tank(s), fuel/water separator
hoses, and fittings OK.
Defective or leaking fuel/water
separator.
Damaged, leaking, or clogged
secondary fuel filter.
Fuel contamination.
Wire 240 or 241 from battery to
circuit breaker CB23 or CB22
faulty.
Circuit breaker CB23 or CB22
faulty.
Wire 240 or 241 from circuit
breaker CB22 or CB23.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
STE/ICE-R #24.
Engine fuel pump will not
receive enough fuel if fuel/water
separator is leaking or defective.
WARNING
Does fuel/water separator
deliver fuel to engine fuel
pump?
Read WARNING
on Page 2-1047
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