Practice question

A school bus engine has an automatic engine idle-shutdown feature. The operator complains the engine shuts off after extended idling. The technician should:

  1. Assume the engine has failed and replace it
  2. Replace the fuel injectors
  3. Recognize this is the programmed idle-shutdown strategy and verify the parameter settings rather than diagnosing a fault
  4. Replace the starter motor

Answer: C — Recognize this is the programmed idle-shutdown strategy and verify the parameter settings rather than diagnosing a fault

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