616
Thermo King
Critical

Engine Overspeed

The engine has exceeded the safe revolutions per minute (RPM).

Possible causes

  • Oil vapor intake through air inlet
  • Injection control system failure
  • Damaged RPM sensor giving false reading

Recommended actions

  • Inspect turbocharger for oil leaks
  • Verify crankcase ventilation system
  • Validate RPM reading with external tachometer

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