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)
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