Causes of engine overheating.

Posted on November 10, 2020 at 5:03 pm.

Jide Fashetire (Head, Technical )
For: City-Mechanic Automobile Limited.
Image source : Big Boyz Garage.

The word “overheating” in cars literally means extremely hot engine, which implies alteration in the cooling system of the engine in a vehicle.  to an average motorists,it means  the sudden upward movement of a pointer on the temperature (temp) gauge from the mid-point toward the red zone on the temp indicator, signalling danger. 
To most motorists, they hardly pay attention to the information displayed on the instrumental cluster (I.e the speedometer), until steam is being observed, emanating from the bonnet. 
Possible Causes of overheating in cars.
For the purpose of troubleshooting overheating in cars, there is need to outline the two (2) basic approaches a vehicle engine can be overheated.
This could be categorized into ; electrical and mechanical fault.
 
Causes of engine overheating: Possible causes under electrical faults are as follows; faulty cooling fan(s), blown fuse, burnt cooling fan relay and bad coolant temp sensor. 
While mechanical causes of overheating includes; worn water pump,  clogged radiator cell,  defective thermostat and leaky coolant hose. 
Possible Consequences of overheating on engine. 
The most common aftermath of overheating on car engines are; bursted plastic head of the radiator cell as well as the fortified water hose, others are blown top gasket, which gives way to coolant and engine oil mixture.
Finally among other possible consequences of overheating is the dragging sound emanating from the engine, as if it under a severe load. 
So professional advise to motorists, is to discontinue driving at the sight of overheating sign(s) on your car. Pull over to the service lane, turn engine off, while allowing it to cool, then call your mechanic. 

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