TM-9-2320-361-24-1

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2

AUGUST 2006

TM-9-2320-361-24-1 - Page 262 of 1176

TM 9-2320-361-24-1

0015 00

0015 00-6

HEATING SYSTEMS TROUBLESHOOTING (Contd)

Table 1. Heating Systems Troubleshooting Procedures (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. ENGINE MANIFOLD

HEATER DOES NOT

WORK (Contd)

Test 8. Check continuity of ignition

coil harness.

1. Disconnect ignition coil

harness from fuel pump and

ignition coil.

2. Set multimeter to RX 1.

3. Connect multimeter negative

lead to lead 55 and

multimeter positive lead to

pin A.

Test 9. Test manifold heater fuel

system.

1. If continuity is not present, repair

harness (WP 0090 00).

2. If continuity is present, go to test 9.

Refer to WP 0006 00, table 3,

malfunction 1, steps 2 through 4.

TEST 8

STEP 3

IGNITION COIL

WIRING HARNESS

PIN A

LEAD

55