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Page Title:
ENGINE CRANKS BUT WILL NOT START. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
E
E1 ENGINE CRANKS BUT WILL NOT START.
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's: Automotive
Engine OFF, (TM 9-2320-364-10)
(Item 74, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
STE/ICE-R (optional) (Item 3, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
DDEC Repair Kit (Item 15, Appendix G)
Top engine access cover opened,
Multimeter (Item 44, Appendix G)
(TM 9-2320-364-10)
Pan, Drain (Item 47, Appendix G)
Reader, Diagnostic (Item 53, Appendix G)
Remover, Connector (Item 55, Appendix G)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
START
1.
KNOWN INFO
TEST OPTIONS
Lamp check OK, no data link or
Visual inspection.
Is fuel supply OK?
DDEC data received.
REASON FOR QUESTION
POSSIBLE PROBLEMS
Inadequate fuel supply will
Fuel supply empty.
cause engine to crank but not
Aerated fuel.
start.
Clogged fuel filter.
Emergency shut-off switch faulty.
TRS out of adjustment.
TRS faulty.
Damaged DDEC pulse wheel.
Damaged DDEC ECM terminals
or connectors.
Refuel vehicle
SRS faulty.
(TM 9-2320-364-10).
NO
Open in injector return line.
Verify repair, go to
Short in injector return line.
Step 13 of this Fault.
DDEC ECM input voltage faulty.
YES
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