Table 5. Engine Troubleshooting Procedures - Continued.

TM 9-2320-312-24-1

TROUBLESHOOTING PROCEDURES - CONTINUED

0006 00

Table 5. Engine Troubleshooting Procedures - Continued.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

2. Engine Runs Cold - Continued.

3. Attempt to turn fan. If fan

turns freely, perform the

following test to check for air

pressure to fan clutch.

NOTE

Fan clutch solenoid is located on right frame rail to

right of engine. Positive terminal is terminal closest to

inside frame rail.

If there is no clicking sound or

a. Connect a jumper wire

air being expelled from fan

between 12V terminal on

clutch solenoid, replace fan

alternator and fan clutch

clutch solenoid (WP 0098 00).

solenoid positive (green

wire) terminal. Fan clutch

should move in and out as

power is supplied and

removed. A clicking

sound should be heard

from solenoid and air

being expelled from valve

side of solenoid.

a. If required air pressure is

b. If fan clutch solenoid is

not present, replace fan

operating

properly,

clutch solenoid (WP 0098

disconnect fan clutch air

00).

hose and check for

required

operating

pressure of 90-120 psi

(621-827 kPa), while

actuating fan clutch

solenoid using jumper

wire.

b. If required air pressure is

present and fan clutch

does not move, notify

Direct

Support

Maintenance to replace

fan clutch.

0006 00-19