6-11 Cylinder 6 Fault (74)

312

TM 9-2320-312-24-2

Troubleshooting Section

5-11 Cylinder 5 Fault (74)

Also use this procedure if you have been referred

to this test from Troubleshooting, "Engine Misfires,

Runs Rough or Is Unstable " or Troubleshooting,

"Low Power/Poor or No Response to Throttle".

Perform this procedure under conditions that are

identical to the conditions that exist when the

problem occurs. Typically, problems with the injector

solenoid occur when the engine is warmed up

and/or when the engine is under vibration (heavy

loads).

The following background information is related

to this procedure:

The engines use Hydraulic Electronic Unit Injectors

that are hydraulically actuated and electronically

energized. The solenoid is mounted on top of the

fuel injector body.

The injectors can be individually cut out to aid in

troubleshooting misfire problems. Use the Cylinder

Cutout Test to disable individual injectors.

The injector solenoids can also be actuated without

running the engine in order to check the operation

of the solenoids. Use the Injector Solenoid Test to

perform this function.

Note: The Injector Solenoid Test will not help find

leaks in the high pressure oil system.

g00723522

Illustration 132