TM 5-3805-296-23-2
0103
Table 1. Engine Cranks But Will Not Start.
0103
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CAUTION
Engine Cranks But Will Not
Start
Do not crank engine continuously for more than 30 seconds. Allow start-
ing motor to cool for two minutes before cranking engine again. Failure to
follow this caution may result in equipment damage.
NOTE
If engine cranks slowly, perform diagnostic procedure Engine Will Not
Crank or Cranks Slow (WP 0104).
Test Step 1. Check Tractor Ground
Level (Emergency) Shutdown Switch
Position.
Verify tractor ground level (emergency)
Switch in Engine Operation Position
shutdown switch is in engine operation
Proceed to Test Step 2.
position (TM 5-3805-296-10).
Switch Not in Engine Operation
Position Set switch to engine
operation position (TM 5-3805-296-10).
Proceed to Test Step 11.
Test Step 2. Check Fuel Shutoff
Valve Position.
Verify fuel shutoff valve is open
Valve Open Proceed to Test Step 3.
(TM 5-3805-296-10).
Valve Closed Open valve
(TM 5-3805-296-10).
Proceed to Test Step 11.
Test Step 3. Verify Communication
with Engine ECM, Trans/Chassis
ECM, and Monitoring System.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. Connect MSD (WP 0008).
3. Verify MSD establishes
MSD Communicates With One or
communication with engine ECM,
More Modules Proceed to Test
transmission/chassis ECM, and
Step 4.
monitoring system. (WP 0008).
MSD Fails To Communicate With
Any Module Perform Data Link
Circuit Test (WP 0177).
Proceed to Test Step 11.
Test Step 4. Check for Active Codes.
1. At MSD, check for active
Diagnostic Code(s) Active
diagnostic code(s) (WP 0008).
Diagnose and repair active diagnostic
code(s) (WP 0005).
Proceed to Test Step 11.
No Diagnostic Code(s) Active
Proceed to step 2.