Why is the engine hood hot on both sides but not in the middle?
1 Answers
There are two situations where the engine hood is hot on both sides but not in the middle: normal and abnormal. 1. Normal situation: It is normal for the engine hood to become hot because the heat dissipated by the engine accumulates on the hood. At this time, you can also check the water temperature gauge. If the water temperature is around 90 degrees, it is normal. The water temperature indicator light is used to indicate the temperature of the coolant inside the engine. Some may display different effects in colors: blue indicates the water temperature is too low, red indicates the water temperature is too high, and no light indicates normal. 2. Abnormal situation: The engine temperature starts to rise rapidly just a few seconds after startup because the engine needs to reach a certain temperature to perform optimally. After the car starts, the piston moves very quickly, and the mixture of gasoline and air in the cylinder burns and expands rapidly after ignition to drive the piston movement, which naturally generates a large amount of heat. To ensure that the heat does not rise too quickly and damage the engine, cooling is necessary. However, the engine compartment space is limited. While driving, the wind generated by speed and the fan blow the heat from the radiator into the engine compartment, and since the hood is made of metal, it heats up quickly.
