ENGINE CRANKS BUT FAILS TO START (ABOVE 40F) (4.4C)

TM9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. ENGINE CRANKS BUT FAILS TO START (ABOVE 40F) (4.4C) - CONTINUED.

WARNING

Stay clear of fan while engine is being cranked. Failure to do so could result in serious

personal injury or death.

Disconnect fuel inlet hose (1) from fuel pump inlet elbow (2). Connect

Step 5.

vacuum gage to inlet elbow (2). While assistant is cranking engine

(TM 9-2320-270-10), note reading on vacuum gage.

a. If gage shows less than 6 in. (15 cm) Hg of vacuum, replace fuel

b. If gage shows more than 6 in. (15 cm) Hg of vacuum, remove,

clean, inspect and install fuel lines and fittings (page 4-32),

and purge fuel system (page 4-32).

c. If engine cranks but still fails to start, install right side panel and

close right side of hood (TM 9-2320-270-10) and notify direct

support maintenance.

TA239606

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