TM 9-2320-289-34
Table 2-1. Mechanical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE
16. WILL NOT CRANK OR CRANKS SLOWLY BUT WILL NOT START
Step 1.
Remove torque converter cover and inspect flywheel for chipped or damaged
teeth.
Replace flywheel if teeth are chipped or damaged. (See paragraph 3-15)
Step 2.
Test starter, (See paragraph 4-5)
17, CRANKS NORMALLY BUT WILL NOT START
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
Check for voltage at pink lead on fuel injector pump fuel shutoff solenoid while
assistant cranks engine. There should be at least 9 volts.
If voltage is not correct, trace circuit. (See wiring diagram E-3 or E-5)
If voltage is correct, perform step 2.
Disconnect pink lead from fuel injector pump fuel shutoff solenoid. Turn key to
“RUN” position, Touch pink lead to fuel injector pump terminal and listen for
clicking sound.
If clicking sound is not heard, remove governor cover. (See paragraph 3-38)
Connect 12 volt power source to shutoff solenoid terminal and ground.
Observe solenoid plunger for freedom of movement. Clean or replace
solenoid if plunger sticks.
If clicking sound is heard, perform step 3.
Check fuel injector pump timing. (See paragraph 3-44)
Remove any glow plug. (See TM 9-2320-289-20) Have assistant depress
accelerator pedal halfway and crank engine for 5 seconds.
Test
Step 6. Test
If no fuel mist is observed in glow plug hole, check for restrictions in fuel
return system. Clear any restrictions.
If fuel mist is observed in glow plug hole, remove remaining glow plugs and
repeat test, Test fuel injector nozzle for each glow plug hole that does not
have fuel vapors. (See paragraph 3-36)
fuel injector pump. (See paragraph 3-44)
compression of each cylinder. (See paragraph 3-2)
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