Test Step 8. Check the High Pressure Oil System for Leaks

300

TM 9-2320-312-24-2

Troubleshooting Section

B. Check for any physical damage to the drive

B. While the engine is being cranked, look around

gear. Replace the drive gear, if necessary.

the injector bores for any signs of oil leakage.

Inspect the injector spill ports for excessive oil.

C. Verify that the drive gear and the retaining bolt

All six injectors should spill the same amount of

are properly tightened. Also verify that the pump

oil.

shaft rotates freely.

Expected Result:

No leaks are apparent.

The drive gear and the retaining bolt for the high

pressure oil pump are tight. The pump shaft rotates

Results:

freely.

OK Call technical support for assistance. STOP.

Results:

Not OK

Yes The drive gear bolt is properly tightened

Repair: Replace the O-ring on the injector or

and the pump shaft rotates freely.

replace the damaged injector.

Repair: Replace the high pressure oil pump. If

this does not fix the problem, contact technical

STOP.

support.

Test Step 9. Engine Starts

STOP.

A. Connect the electronic service tool to the engine

No The pump shaft does not rotate freely.

and start the engine.

B. Check for the following codes:

Repair: Replace the high pressure oil pump. If

this does not fix the problem, contact technical

164-00 Injection Actuation Pr Out of Range

support.

164-02 Injection Actuation Pr Sensor Erratic

STOP.

No The drive gear bolt is loose. The pump shaft

164-11 Injection Actuation Pressure System

rotates freely and there is no obvious mechanical

damage that would indicate a different failure.

Expected Result:

164-00 or 164-11 is active or logged.

Repair: Tighten the drive gear bolt to a torque of

110 14 Nm (80 10 lb ft). Check the pressure

Place a check beside the codes that are active or

in order to ensure that the problem has been

logged.

resolved. If this does not fix the problem, replace

the high pressure oil pump.

164-00

________________

STOP.

164-02

________________

Test Step 8. Check the High Pressure Oil

System for Leaks.

164-11

________________

Results:

Yes 164-00 or 164-11 is active or logged.

Hot oil and components can cause personal in-

164-02 may also be active or logged. Proceed to

jury.

Test Step 10.

Do not allow hot oil or components to contact skin.

No 164-02 is active or logged, but 164-00 and

164-11 are not active or logged.

A. Remove the valve cover and inspect the high

Repair: Refer to Troubleshooting, "Injection

pressure oil system for oil leaks.

Actuation Pressure Sensor - Test" for information

on troubleshooting the active 164-02 code.

STOP.