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Page Title:
CHART - 2 - ENGINE CRANKS BUT WILL NOT START (Cont'd) |
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 TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
D. CHART - 2 - ENGINE CRANKS BUT WILL NOT START (Cont'd)
-
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
C 2- 4
-
Check for Aerated
Fuel
Loosen fuel return line.
Flow is steady.
Go to C 2--5.
Observe fuel flow out of line while
cranking. (You can direct the fuel
No flow or
Check fuel filter(s) and supply
into a bucket.)
intermittent flow.
lines to determine cause of
problem (refer to Chapter 2,
Vehicle Troubleshooting, for details).
C 2- 5
-
Check for White
Smoke
Reconnect fuel return line.
White smoke.
Your problem appears to be with
Look for white smoke coming out
cylinder compression or
of the exhaust stack while
restricted air intake. Notify
cranking the engine.
supervisor.
No white smoke.
Go to C 2--31.
C 2- 6
-
Check TRS Status
via RPM Read-out
Select ENGINE RPM on
Display always
Go to C 2--12.
DDR.
reads greater than or
Crank engine while observing
equal to 60 RPM while
DDR display. (NOTE: Battery
cranking.
voltage surge while cranking
with electric starters may blank
Display sometimes
Go to C 2--7.
out or reset DDR.)
or always reads less than
60 RPM while cranking.
C 2- 7
-
Check TRS
Turn ignition off.
Between 100
Go to C 2--8.
Disconnect engine harness
and 200 ohms.
connector at the ECM.
Read resistance between
sockets T1 and T2 at the
Less than
Go to 41-2.
engine harness connector.
100 ohms.
Greater than
Go to 41-3.
200 ohms.
2-559
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