Why does a car's power weaken on rainy days?

[McAnna]

Because the humidity is high on rainy days, water mist forms inside the car's distributor cap, which condenses into small water droplets on the inner wall of the distributor cap after cooling, significantly reducing the car's ignition efficiency and thus leading to insufficient power. Here are some precautions for driving on rainy days: Prevent tire side slipping: The ground is wet on rainy days, and the friction of tires decreases greatly after being moistened, making it easy to cause tire side slipping. Therefore, avoid sudden braking when turning; it's best to decelerate in a straight line before entering the curve. Reduce fog formation: When driving, if it suddenly rains heavily outside and the temperature drops, the water vapor inside the car condenses into fog, obstructing visibility. At this time, turn on the air conditioning and activate the defogging mode.