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FUEL SYSTEM TROUBLESHOOTING
ENGINE CRANKS BUT DOES NOT START - TM-9-2320-365-34-1_139
/.5tonv1-2/TM-9-2320-365-34-1 M1078 Series 2-1/2-Ton 4x4 Light Medium Tactical Vehicles (LMTV) Manual
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1.
TEST OPTIONS
REASON FOR QUESTION
NO
TEST OPTIONS
REASON FOR QUESTION
YES
KNOWN INFO
2.
NO
YES
KNOWN INFO
START
a.1.1. ENGINE CRANKS BUT DOES NOT START
Does fuel linkage
engage?
This question eliminates
possible problems and
determines where
troubleshooting continues.
Go to step 4
of this fault.
Are injectors properly
timed?
Visual inspection
Inspection/adjustment
Adjust fuel timing
(para 4-5).
POSSIBLE PROBLEMS
If injectors are not properly
timed, engine may not start.
Electrical system OK.
Fuel pressure OK.
POSSIBLE PROBLEMS
Faulty
fuel injection
timing.
Faulty injector synchronization.
Faulty
engine assembly
.
Faulty fuel
solenoid
.
Faulty fuel governor.
Faulty
fuel control
linkage.
Faulty
fuel injection
timing.
Faulty injector synchronization.
Faulty
engine assembly
.
Electrical system OK.
Fuel pressure OK.
Fuel
solenoid
OK.
Fuel governor OK.
Fuel control
linkage OK.
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-366-10).
References
TM 9-4910-571-12&P
Tools and Special Tools
Tool Kit, Genl Mech (Item 68, Appendix B)
STE/ICE-R (Item 60, Appendix B)
TM 9-2320-365-34-1
2-64.10 Change 1
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