An engine overheats when driving in traffic but not when driven on the highway.Which of the following is the most likely cause?

Question

Quizplus · Accepted Answer

When driving in traffic, there is low airflow through the radiator and the radiator fan must switch on to draw air through the radiator to cool the engine. If the fan is not working, the engine will overheat. On the highway, there is enough airflow through the radiator to cool the engine, even if the fan is not working. A defective water pump or air trapped in the system would cause overheating regardless of the driving conditions.

An Engine Overheats When Driving in Traffic but Not When