Troubleshooting

The history of engine overspeeds can be viewed on
the electronic service tool.
i06224988
Engine Shutdown Occurs
Intermittently
Note: Use this procedure only if the engine shuts
down completely and the engine must be restarted.
Probable Causes
• Diagnostic codes
• Air Intake
• Electrical connectors
• Fuel supply
• Switches
Recommended Actions
Note: The procedures have been listed in order of
probability. Complete the procedures in order.
Table 30
Troubleshooting Test Steps
Values Results
1. Diagnostic Codes
Note: Certain diagnostic codes and/or event codes may cause
an engine shutdown.
A. Connect the electronic service tool and check for active codes
and for logged codes.
Codes Result: There are active codes.
Repair: Troubleshoot any active codes before continuing
with this procedure. Refer to Troubleshooting, “Diagnostic
Trouble Codes”
Result: There are no active codes.
Proceed to Test Step 2.
2. Air Intake
A. Check the air filter for blockages or restrictions.
B. Check the air intake duct for blockages or restrictions.
Blockages or
restrictions
Result: Blockages or restrictions found.
Repair: Make any repairs, as necessary.
Result: The air intake system is OK.
Proceed to Test Step 3.
(continued)
74 UENR0612-07
Symptom Troubleshooting
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