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Why Can't Flood-Damaged Cars Drive on Highways?

1 Answers
KaiDella
07/30/25 8:31am
After being repaired, various components of a flood-damaged car will be affected, and there will still be many issues post-repair, which is why they cannot be driven on highways. Below are the damage assessment standards for flood-damaged cars: 1. Water-immersed car: The water level exceeds the car's chassis, known as a water-immersed car. 2. Semi-flooded car: The water level exceeds the oil dipstick, referred to as a semi-flooded car. 3. Fully flooded car: The water level exceeds the engine hood or the dashboard panel, called a fully flooded car. Additional information: A flood-damaged car refers to a vehicle that has been submerged in water, typically involving the engine and transmission being soaked, with water depth exceeding the wheels and body seats, and prolonged contact between the vehicle's bottom components and water. Such cars pose significant risks, as their electrical systems are prone to short circuits, fires, etc.
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What is the reason for the car not shaking when the oxygen sensor is unplugged but shaking when installed?

The reason for the car not shaking when the oxygen sensor is unplugged but shaking when installed is that the oxygen sensor is damaged. In this case, it is necessary to go to a 4S shop or auto repair shop to replace the oxygen sensor. The following is the relevant introduction: The impact of a damaged front oxygen sensor on the car: Excessive exhaust emissions; deterioration of engine conditions; the vehicle stalls at idle; inaccurate engine operation and reduced power; the engine computer cannot accurately judge the mixture condition; affects the normal operation of the three-way catalytic converter. The role of the oxygen sensor: The car oxygen sensor is a key feedback sensor in the electronically controlled fuel injection engine system. It is a key component to control car exhaust emissions, reduce car pollution to the environment, and improve the fuel combustion quality of the car engine. The oxygen sensor is installed on the engine exhaust pipe. Maintenance of the oxygen sensor: Check the working status of the oxygen sensor every 30,000 kilometers. If it is aging or failing, clean or replace the oxygen sensor in time.
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