TM 9-2330-390-14&P
Table 4-2. Unit Troubleshooting (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Diesel fuel is combustible. DO NOT smoke or allow an open flame near fuel tank. Shut
down engine when adding fuel. Failure to follow this warning will result in serious injury
or death to personnel. If you are burned, immediateiy seek medical attention.
Step 5.
Check for clogged fuel filter and vent at tip of filter (see paragraph 4-124).
Clean or replace damaged fuel filter (see paragraph 4-124).
Step 6.
Check injection pump for correct timing (see paragraph 4-120).
Adjust injection pump timing (see paragraph 4-120).
Step 7.
Remove and inspect nozzle holder for clogging or damage (see paragraph 4-121).
Replace damaged nozzle holder (see paragraph 4-121).
Replace damaged injection pump (see paragraph 4-120).
22. ENGINE WILL NOT START IN COLD WEATHER [BELOW 410F (50C)].
Before performing a continuity test, always disconnect battery negative (-) ground
cable and circuit to be tested. Faliure to follow this caution may damage multimeter.
NOTE
Refer to engine wiring diagram for assistance (see paragraph 4-135).
Step 1.
Remove glow plug from cylinder head (see paragraph 4-133). Use a multimeter to measure
resistance between glow plug terminal and housing. Resistance should read 1.0-1.2 ohms.
Replace damaged glow plug (see paragraph 4-133).
step 2.
Test glow plug circuit by disconnecting engine wiring harness from glow plug cord connector (see
paragraph 4-133). Using multimeter set to DC voltage, check for 12 V dc.
If no voltage is present, replace damaged engine wiring harness (see paragraph 4-132).
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