ENGINE STARTS BUT WON'T CONTINUE TO RUN

TM 5-2420-222-20-1

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. ENGINE CRANKS BUT FAILS TO START OR IS HARD TO START ABOVE 320F (0C) - CONTINUED

WARNING

No open flames, welding, grinding, smoking, or use of heat producing devices permitted near fuel tank

and fuel lines during maintenance unless the fuel tank has been cleaned and purged of all flammable

liquids and vapors. Fuel burns easily and fumes are explosive. Keep battery disconnected. Failure to

observe these precautions could cause serious injury.

Step 16.

Using 5/8-inch open-end wrench, unscrew fuel line (1) from elbow (2) approximately one-half turn.

Check that diesel fuel squirts out from between fuel line (1) and elbow (2).

a. If diesel fuel leaked out from fuel line (1), replace fuel pump (page 2-226).

b. If diesel fuel does not leak out from fuel line (1), go to step 17.

Step 17.

Using 5/8-inch open-end wrench, unscrew fuel line (1) from fuel shutoff valve (3) approximately one-

half turn. Check that diesel fuel squirts out from between fuel line (1) and fuel shutoff valve (3).

a. If diesel fuel leaked out from fuel line (1), replace fuel shutoff valve-to-fuel pump fuel line (page

b. If diesel fuel does not leak out from fuel line (1), replace fuel shutoff valve (page 2-273).

ENGINE STARTS BUT WON'T CONTINUE TO RUN

Go to Engine Malfunction 3: Engine Cranks But Fails to Start Or Is Hard To Start Above 32F

(0C), steps 8 thru 17 (page 2-42).

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