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Page Title:
ENGINE CRANKS BUT WILL NOT START (CONT). |
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 TM 9-2320-364-20-1
E1 ENGINE CRANKS BUT WILL NOT START (CONT).
7.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Fuel supply OK.
Visual inspection.
on Page 2-487
No aerated fuel.
Fuel filter OK.
REASON FOR QUESTION
Emergency shut-off switch OK.
Are all DDEC ECM terminals
TRS adjustment OK.
Damaged terminals and
and connectors (DDEC ECM
TRS OK.
connectors can affect signal to
DDEC pulse wheel OK.
and harness side) free from
DDEC ECM.
damage?
POSSIBLE PROBLEMS
Damaged DDEC ECM terminals
or connectors.
SRS faulty.
Repair connectors
Open in injector return line.
(Para 7-101) or re-
Short in injector return line.
place DDEC ECM
DDEC ECM input voltage faulty.
NO
(Para 7-56).
Verify repair, go to
Step 13 of this Fault.
YES
Replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 13 of this Fault.
8.
KNOWN INFO
TEST OPTIONS
Fuel supply OK.
DDR test.
Is an SRS signal received?
No aerated fuel.
Fuel filter OK.
REASON FOR QUESTION
Emergency shut-off switch OK.
TRS adjustment OK.
If an SRS signal is not received
TRS OK.
by DDEC ECM, the engine will
DDEC pulse wheel OK.
not start.
DDEC ECM terminals and
connectors OK.
POSSIBLE PROBLEMS
SRS faulty.
Open in injector return line.
Short in injector return line.
Go to Step 10 of this
DDEC ECM input voltage faulty.
NO
Fault.
YES
2-486
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