Automotive Systems

Formerly Automotive Systems I

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GENERAL TROUBLESHOOTING: Introduction

GENERAL TROUBLESHOOTING

LEARNING OBJECTIVE: Describe general troubleshooting techniques used in the maintenance of a diesel fuel system.

When troubleshooting a diesel engine, keep in mind that problems associated with one make and type of engine (two-stroke versus four-stroke) may not occur exactly in the same way as in another. Specifically, particular features of one four-stroke-cycle engine may not appear on another due the type of fuel system used and optional features on that engine. Follow the basic troubleshooting steps listed below before rolling up your sleeves and trying to pinpoint a problem area.

  1. Obtain as much information from the operator as possible concerning the complaint.
  2. Analyze the problem in detail first, beginning with the smallest and simplest things.
  3. Relate the problem symptoms to the basic engine systems and components.
  4. Consider any recent maintenance or repair job that might tie into the problem.
  5. Always double-check and think about the problem before disassembling anything.
  6. Solve the problem by checking the easiest and simplest things first.
  7. If possible, use the special tools and diagnostic equipment at your disposal to verify acomplaint and pinpoint the general area.
  8. Determine the cause(s) of the problem and carry out the repair.

Operate the engine and road test the vehicle to confirm that the problem is corrected.

Published by SweetHaven Publishing Services
Based upon a text provided by the U.S. Navy

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