TM-9-2320-386-24-1-1

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 1 OF 2

MAY 2001

TM-9-2320-386-24-1-1 - Page 125 of 1078

TM 9-2320-386-24-1-1

0017 00

0017 00-7

Table 2. STE/ICE-R NO-GO-Chain Tests (Contd)

ENGINE CRANK – NO START

(Contd)

NG30

DCA

MODE

6

CHECK FUEL SUPPLY PRESSURE:

• Dial 24 into TEST SELECT.

• Press and hold TEST until CAL message

appears on display.

• Release TEST.

• Wait for offset value to appear on the display.

• Is the offset value within ± 45 psi (310 kPa)?

PROMPTING

MESSAGE

TEST NO.

TEST

24

FUEL SUPPLY

PRESSURE

NO

YES

• Proceed to TM 9-4910-571-12&P

for offset fault isolation.

NO

YES

• Replace fuel filter (WP 0054 00).

• Repeat step 7.

7

CHECK FUEL SUPPLY PRESSURE DURING CRANK

(UPSTREAM OF FUEL FILTER):

• Turn vehicle accessory switch ON.

• Dial 24 into TEST SELECT and press TEST.

• Crank the engine and watch the readout display.

• The number on the display should be above 7 psi

(48 kPa).

• Is the fuel pressure above the limit specified?

• Check for restricted air

intake. If still no start,

notify DS maintenance.

Reverse the procedure in step 5 so that elbow fitting is mounted on rear side of fuel filter

and tee fitting is mounted on front side of filter.

NOTE

After completing repair, rerun GO-Chain tests to

verify that the problem is fixed and that no other

problems exist.