TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 187 of 1205

REFERENCE INFORMATION

0

II

. .

WARNING

i

Be careful

when performing

this test.

Exhaust gas can

be extremely

hot and severe

burns can result.

Put

a piece of paper in the exhaust stream for a few

moments with the engine at idle.

Then look

at the paper

to see if there is any condensed fuel on it.

Then smell

the paper to see if it smells like raw fuel.

If it smells like

fuel, the engine could be very cold or else it has a DS

level fuel system fault or compression

fault.

-._

-I

White smoke for a short time after start-up,

especially on a cold day, is a normal condition.

It is caused by incomplete combustion of the

fuel because of low cylinder temperature.

It

should clear up in a few minutes.

If not, you

may have a bad head gasket, cracked block,

or a restricted check valve. Check for

1

restricted check valve (para. 3-36).

TM 9-2320-387-24-l

FUEL SYSTEM

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