The engine brake light came on after the car drove over a watery road

Parking brake: It should be the often said handbrake (also pedaled with feet), which is connected to the brake pads (generally the rear wheel) through a brushed wire, and when the wire is pulled closer, the brake pads clamp the brake disc, which is generally used when parking, especially when the car is parked on the road surface that is not level, to prevent rolling. Service brakes:

It is the normal braking system, which is used to slow down and stop while driving. Engine braking: refers to the use of the engine's restraining force to achieve the effect of deceleration.

For example, when your car is 100 yards, the braking system suddenly fails, that is, there is no sign of slowing down when you step on the brakes, you can quickly drop to the first gear, at this time, you will obviously feel that the car is much slower, but it still can't stop quickly. As for the principle, it is actually very simple, normal driving is the piston to do the work to the wheels to rotate, without stepping on the accelerator on the contrary, the wheels with the piston to do the work. The low-gear is a little stronger due to the gear ratio, and the person who drives the manual transmission car has such a feeling, the car is moving, loosen the throttle, and step on the clutch to feel that the car is faster, that is because the engine has no containment force.

It is necessary to go to the repair shop to check if the engine is flooded or the site line is flooded.

You may have water in the engine, so it's best to go to the repair shop to overhaul it!

1. Sensor problems.

The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when these sensors are damaged, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn on.

2. Maintenance problems.

Poor engine maintenance is the most common cause of engine failure to light up. We know that vehicles have a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light that you should care about your car.

3. Oil quality problems.

The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

4. Poor combustion of mixed gas.

The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by engine carbon deposition or knocking problems, and these will eventually be detected by the engine's oxygen sensor, and after being reported to the ECU, the fault light will naturally be lit as a warning.

5. Air intake problems.

When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on.

The general engine fault light is on, and it is possible that the state of combustion is not particularly good, and the state of the general engine.

The bad version is the main cause of the engine failure lamp. There is also an engine guarantee that will also cause the fault light to be on, such as the car is weak, and the engine noise is too loud, or there is a significant knocking sound. So it's still necessary to do some regular maintenance and repairs.

After the car crossed the water, it was plagiarized.

The fault light is on to indicate that the water has affected the engine, pay attention to the following aspects:

1. The car can also be driven, but the air filter water intakes, and the engine inhales air and brings part of the water into the air intake to form water vapor, which is fully burned after mixing with gasoline, which has little impact on the engine.

2. A small amount of water enters the engine, which is mixed with the engine oil after entering the cylinder, and the oil becomes worse, and the oil containing water will increase the wear of the engine parts, and it is possible that the noise and vibration of the engine will become greater in the future.

3. Start the engine again and make a sound for a few seconds after turning off again, and then start many times has not been able to start, this situation is the most serious, because the water can not be compressed, the engine is still working at high speed after the water enters the cylinder, and the water can not be compressed when doing work, which directly leads to the top bending of the valve and connecting rod, the piston is stuck, the middle cylinder is seriously worn, and the crankshaft is bent, so it is recommended to change the oil as soon as possible. Some models are designed with the air intake duct designed on the fender or on the hood, and the splash caused by driving in the water is also high and low, which cannot be compared, change the oil, and blow the intake pipe clean.

This may be the matter of water ingress into the engine, which can basically overhaul the engine.

The vehicle fault light is generally caused by the fuel emission system, and you are on the fault light.

When the special vehicle is started、

It is a car extinguishment, starting and extinguishing the car three times after starting the vehicle, you observe whether the fault light is still lit, or it is still lit, you need to go to the store in time to check the fault code, to see whether it is the problem of the engine or the sensor failure, or it may be an occasional failure, you can not go to the store in time to check.

There are many cases where the engine oxygen sensor is abnormal and causes the engine to fail and the light alarm is bai. The motor oxygen sensor is generally placed in the intake manifold attached.

Due to intense driving or some collisions, the oxygen sensor will be displaced or damaged, which will cause the sensor to be abnormal and cause a fault light alarm.

Plugged injectors and carbon build-up in the intake valves can also trigger engine failure light alarms. Because there will be impurities in gasoline, they will accumulate at the fuel injector, which will affect the fuel injection of the fuel injector, especially in the cylinder direct injection engine, which will directly lead to engine shutdown and other conditions. The impurities will produce carbon deposits after combustion, and the accumulation of carbon on the throttle to a certain extent will affect the normal opening and closing of the throttle, affect the normal work of the engine, and cause the alarm light to light up.

Another common scenario is sensor failure. After walking on a muddy road, the engine fault light suddenly turned on, but there was nothing unusual about the car itself. When I drove the car to the 4S shop for inspection, it was found that the left front wheel sensor was faulty.

As a result, the problem was solved by slightly cleaning it with water and then installing it. An abnormal sensor does not necessarily mean that the vehicle is faulty, but there will certainly be an anomaly that needs attention.

The main reasons for abnormal engine noise are:

1. The causes of hysterical sound problems in the engine can be divided into air filter, spark plug, ignition wire, gasoline, gasoline filter, vaporizer, oil pump and other problems. Check the air filter, whether it is dirty, whether the spark plug is old and has to be replaced, the ignition coil is broken, the gasoline is not clean, such as water in the oil circuit. There are also inspections of oil pumps, vaporizers, etc.

2. When driving, the acceleration is normal, and the ignition may be normal, but if you drive at a constant speed, you find that the engine speed is too high, but the speed still can't be raised. Try checking the coolant, if the oil pressure is too high, or too low, check the oil pressure gauge, and there may be a problem with the ignition time setting, which can also cause these symptoms. As for the rest, it may be an internal problem with the engine, such as a clogged EGR valve, etc.

3. The engine has a sizzling sound, there may be a problem, the engine is overheating, check the cooling system. The exhaust system is clogged, the vacuum tube is leaking, or it is broken.

4. When accelerating, the engine will have a whirring sound, or when decelerating, it will also appear, in short, with the rpm change, the sound volume changes. The possible reason is that the power steering oil is missing, and the fuel is filled. Generator bearings may be damaged.

Power steering pumps, water pumps, will produce similar noise.

5. The main problem of very loud noise coming out of the exhaust pipe is in the exhaust system, check whether the exhaust pipe is broken.

6. Step on the accelerator pedal, you will hear a bang, a banging sound coming out of the exhaust pipe, the sound may not be very loud, and the car will not be abnormal when driving, and the fuel consumption will increase. It is advisable to check the muffler and the exhaust pipe for damage.

7. The engine may be caused by the sound of kicking, and there is dirt inside the engine, so it is recommended to change the oil, filter and wash the engine. Others could be valve problems.

Stop and see, if it doesn't work, drag it to the repair shop. Never start.

After wading, the engine fault light is on, indicating that there is a problem with the engine of the car, which is generally caused by the belt slipping after the engine enters the water. The reasons why the engine failure light is on are:1

Fuel quality problems: Poor fuel quality is not up to standard. As soon as the gas is filled, the engine failure light is lit on the dashboard, which is generally caused by regret for adding poor quality oil at an irregular gas station.

This condition does not affect the driving of the vehicle, but it can cause damage to the engine. 2.Water temperature sensor is damaged:

When the water temperature of the engine is low, the water temperature sensor of the water temperature meter inputs the water temperature information of the ECU to make the air-fuel ratio thicker, so that the engine works stably. Similarly, if Bimu Lingguo sends out a cold engine information after warming up, it will make the air-fuel ratio thicker, and the engine will not work properly. 3.

Carbon deposits in engines and spark plugs: After the engine is used for a period of time, some carbon deposits will accumulate, which will lead to engine damage, difficulty in starting, poor acceleration, excessive engine noise and other phenomena. The accumulated heat can cause the engine to ignite disorderly, which can cause engine knocking.

In this case, the engine fault light will come on.