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TM 9-2320-364-20-2
2-1024
1. ENGINE CRANKS BUT FAILS TO START OR STALLS AFTER STARTING (CONT).
Headlights operate indicating
22 to 28 vdc present at
1020/1872 splice at ignition
switch.
22 to 28 vdc is supplied to fuel
priming pump.
Fuel priming pump grounded.
Fuel priming pump capacitor
OK.
22 to 28 vdc not supplied to
MC108 wire 1020.
Fuel priming pump circuit
breaker faulty.
22 to 28 vdc not supplied to
wire 1020 at DUVAC.
Fuel tank(s), hoses and/or
fittings loose, damaged or
leaking.
Fuel priming pump filter faulty.
Fuel priming pump faulty.
Fuel water separator faulty.
Fuel pump faulty.
Secondary fuel filter faulty.
Fuel contaminated.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 22 to 28 vdc are not present,
fuel priming pump will not
operate.
YES
NO
Go to Step 7 of this
Fault.
6.
Are 22 to 28 vdc measured on
wire 1020 at the output
terminal of fuel priming pump
circuit breaker?
Repair wire 1020
(see schematic
Fig 2-23) or notify
DS Maintenance.
Verify repair, go to
Step 16 of this Fault.
WARNING
Read WARNING
on Page 2-1025
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