CHART -2 - ENGINE CRANKS BUT WILL NOT START

TM-9-2320-363-20-1 Truck Tractor Line Haul: 52 000 GVWR 6x4 M915A2 (NSN 2320-01-272-5029) Manual
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STEP/SEQUENCE RESULT WHAT TO DO NEXT TM 9-2320-363-20-1 Section 4 TROUBLESHOOTING CHARTS D. CHART -2 - ENGINE CRANKS BUT WILL NOT START (Cont'd) C 2-27 Check Battery Disconnect battery cables at Less than Service discharged battery. battery. +11.5 volts. (Note: if a short to ground exists Read voltage at battery + anywhere in battery + circuit, terminal (red lead) to battery this vehicle will shut down again - terminal (black lead). If not repaired). Then go to C2-30. Greater than An open or short to ground exists or equal to *11.5 volts. in unfused ignition line (ckt #2). Repair open or short to ground. Then go to C2-30. C 2-28 Check if Fuses Blow Again Turn ignition off. Fuses(s) or Go to C2-26. Disconnect the 5-way power circuit breaker(s) are harness connector at ECM. still okay. Replace blown fuse(s) or reset circuit breaker(s). Fuse(s) or Go to C2-29. Wait 10 seconds. circuit breaker(s) are Check If fuse(s) or circuit breaker(s) blown or open again. has blown or opened up again. C 2-29 Check for Short to Ground in Wiring Read resistance between Greater than Go to C2-11. (circuit #240) and a good ground. or equal to 10,000 Read resistance between ohms or open on (circuit #241) and a good ground. all readings. Less than Short to ground exists. Repair 10,000 ohms short(s). Then go to C2-30. on any reading. *23 volts on a 24 volt system. Change 3 3-345.79

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