Can the oil cooler be responsible for over heating of an engine?Thanks a lot.
Possibly, hot oil - thin oil, thin oil does not lubricate as well - thus more friction - thus overheating - thus kablowie. Unlikely tho as it may be. overheating engines usually are caused by stuck thermostats, blocked radiators, failed water pump, low coolant level, not working fan, Air bubble in coolant system. Also a possibility - temperature gauge failed and is telling you car is overheating - but very unlikely as well
Yes. A malfunctioning oil cooler will certainly affect the heat dispersal in an engine. Oil performs basically two functions, the primary function is lubrication which relates directly to reducing heating. Without lubrication, heating is the first result, as oil, combined with coolant in most engines can easily result in overheating. So yes, the oil cooler will definitely affect the overheating of an engine since it's half the method used in engine cooling.
If the heat exchanger is blocked with crud so that cooling air can of pass through then the oil can get too hot and the engine can potentially overheat, but usually the primary water-cooling system nust has to work much harder and the oil lifespan is far shorter as it gets cooked. On air-cooled cars such as the Citroen 2cv a blocked oil cooler is one of the main causes of the engine overheating; except on very cold days air-cooling alone is insufficient.
