The engine temperature is too high

Checks by the user

  • Restriction in filter/cleaner or air induction system
  • Fault in atomisers or atomisers of an incorrect type
  • Fault in cold start system
  • Restriction in exhaust pipe
  • Fan damaged
  • Too much lubricating oil in sump
  • Restriction in air or water passages of radiator
  • Insufficient coolant in system

Check by the workshop personnel

  • Fault in fuel injection pump
  • Timing of fuel injection pump is incorrect
  • Valve timing is incorrect
  • Cylinder head gasket leaks
  • Piston is damaged
  • Fault in thermostat or thermostat is of an incorrect type
  • Restriction in coolant passages
  • Fault in water pump
  • Turbocharger waste-gate does not work correctly (if there is one fitted)