Interview the operator about the problem before you begin troubleshooting, when possible. Refer to Troubleshooting, "Driver Questionnaire" for a list of questions.
Attempt to duplicate the problem. Try to duplicate the operating conditions, when possible.
Narrow the List of Possible Causes
Use the information from the driver questionnaire. Attempt to identify a common cause if there is more than one symptom. The possible causes of a problem are listed at the beginning of each procedure in the "Symptom Troubleshooting" section of this manual.
The procedures in this manual provide the most efficient way to determine the root cause of the problem.
Provide Feedback to Caterpillar
After the correct repair has been performed on the engine, provide brief, detailed information to Caterpillar about the repair. This information helps Caterpillar better serve you and the customer. Refer to Troubleshooting, "Service Information Report" for additional information.