Why does a car wading die?[汽车修理知识]

Reader Mr. Li asked: Once when my Camry drove to Yuancun Erheng Road, my Camry suddenly died on fire due to the deep water on the road. What was the reason?
Answer: There are three reasons why the vehicle stalls when wading through water: 1. Water enters the cylinder through the engine air intake mechanism; 2. Water entersExhaust pipe; 3. The electrical system is immersed in water and short-circuited.
Generally speaking, the key points for maneuvering when a vehicle passes through water-filled areas are: high torque, low speed, pass through water-filled areas with a first gear and moderately increase the throttle (automatictransmissionThe vehicle is in L gear or first gear).It is usually recommended that the water depth exceedsBumperDon't risk passing through at the bottom edge, because water waves will be stirred up when the vehicle is driving at this time, and water can easily enter the cylinder through the engine's air intake mechanism. Since water is liquid and incompressible, if it enters the running engine cylinder, the compressed water will produce a huge reaction force, causing the connecting rod to break,CrankshaftDeformation, even cylinder burst and other failures.Another case of sudden engine stalling is: when the vehicle passes through water, the engineSpeedLow, causing water to enter the exhaust pipe, causing poor engine exhaust and stalling. Don't try to ignite at this time, call the trailer for rescue as soon as possible. Because water is likely to enter the engine cylinder at this time, once the engine is forced to run, it will cause more serious failures.
In addition, what if the vehicle is immersed in the parked state?First, let’s take a look at the approximate height of the water, it’s about half the depthTiresAt altitude, the engine should not enter water. After the water retreats, the engine can be driven to the repair shop to clean the chassis or exhaust pipe.More than half the water depthTiresAt high altitudes, the engine room and the passenger compartment may have been flooded, and the electrical system will be flooded and short-circuited. At this time, the engine should not be started rashly. After the accumulated water has receded, please tow the trailer to the repair shop for repair. If you start the car rashly, it may cause serious damage.

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