The car dashboard water level does not show what s going on

It is the two-stage poor contact of the battery, there are positive and negative poles on the battery, there are wire links respectively, the connection is easy to oxidize and cause poor contact, the method is also very simple, use boiling water to scald both poles, of course, if you use sandpaper to polish is a regular practice, but it is time-consuming and laborious, this original method is simple and effective, and then use a screwdriver to lock the screws at the joint, it is best to smear it with butter, and it is not easy to oxidize in the future.

Ignition system faults can be divided into two situations according to their position in the ignition system: low-voltage circuit faults and high-voltage circuit faults.

1) Common faults in low-voltage circuits: insufficient battery storage; Poor or deranged wire connections; Poor battery tie-up; Damage to the distributor or Hall sensor; Damaged ignition switch or poor wiring; The transistor ignition control unit is damaged or poorly wired. Most of the diagnostic methods for low-voltage circuit faults use ammeter or voltmeter to check the fault line by line to eliminate the fault point.

2) Common faults of high-voltage circuits: high-voltage lines fall off or leakage; Breakage and breakdown of distributor cover; Ablation, rupture, breakdown of distributor fire head; The spark plug electrode gap is too large or too small; Excessive carbon deposits in the spark plug; damage to the spark plug insulator; The ignition coil is damaged or the wiring is falling off. Most of the faults of high-voltage circuits adopt the high-voltage fire test method, that is, the high-voltage line in the center of the distributor or the high-voltage line of a cylinder is unplugged, and the wire head is placed at a distance of 3-6mm from the cylinder block, and the engine is started to test the fire, as shown in Figure 2.

If there is a spark and the spark is strong, it means that the ignition system is working properly.

The meter of the water tank is a reminder of the temperature, and if it is just started, it is indeed not displayed.

Most of them are caused by poor contact. is a small sensor that sits just outside the engine. You can try to remove the dust and put it back on.

This is usually caused by a faulty sensor, but it can also be caused by a broken floating tank.

What's the matter that the dashboard doesn't show the water temperature gauge, the water temperature gauge you said the dashboard doesn't show it should be that the indicator light suddenly doesn't turn on. Generally, if this indicator light is not lit, it is a failure of the liquid level sensor, and the indicator light is a light-emitting diode, which is not easy to break.

Your problem is not clearly described here, there are several cases:

1.The backlight of the water temperature indicator suddenly turned off.

2.The water temperature indicator light lit up for a while, and suddenly it didn't come on again.

3.If the water temperature indicator drops or rises suddenly, let's analyze it based on past experience.

The backlight of the water temperature indicator suddenly turns off, which is rare in practiceIt is possible that the meter is flooded or the fuse of the meter light is damaged, causing all the lights of the meter to fail, but this situation is rare and rare. It is basically impossible to happen, and the LED backlight rarely has a single light that will not be on, and generally the entire meter will fail. The specific inspection method, one is to check the fuse of the instrument or remove the entire instrument to see if there is electricity through, to determine whether the instrument is broken or the wiring problem.

The water temperature indicator lights on and off, so check two places at this timeOne is whether the water in the tank is enough, the most common water temperature alarm is caused by the lack of antifreeze and the rise in water temperature. The same is true for water temperature sensors, if the line is falsely connected, sometimes good and sometimes bad, it will also cause this phenomenon.

In addition to the lack of water, there is also a possible problem that other components of the water circulation system are malfunctioningFor example, the thermostat does not open, the electronic fan does not rotate, the impeller of the water pump is damaged and it is difficult to drive the water circulation, or the water temperature alarm caused by poor heat dissipation of the water tank. The above are all possible causes of water temperature alarms, specifically to the place where the car is repaired, take a special decoder to check the dynamics of water temperature.

If the instrument indicator is not lit, first check the power supply fuse of the dashboard, and replace it if it is blown. Disassemble the dashboard, the lights are generally at the back of the dashboard, replace the lights that are not lit, and generally the individual lights are not lit to indicate that there is no problem with the fuse and wire, the main reasons are as follows

1. The lamp of the dashboard is damaged and needs to be replaced in time;

2. If the power supply line of the dashboard is broken, there is an open circuit or short circuit, which will also cause the car dashboard to not light up;

3. If the power supply fuse of the car dashboard is broken, there will naturally be no power supply, and the dashboard will not light up.

Precautions in the use of the car dashboard:

1. When the indicator light is on, the odometer should be observed immediately, if the cumulative mileage reaches or exceeds l00,000km, the timing toothed belt must be replaced, otherwise the timing toothed belt may break, so that the engine can not work normally.

2. After replacing the new timing toothed belt, it is necessary to open the rubber plug outside the reset switch on the mileage dial, and press the reset switch inside with a small round bar to extinguish the indicator light of the timing toothed belt.

3. After replacing the new timing toothed belt, remove the odometer and adjust all the readings on the odometer to the 0 position.

Glass of waterThe low liquid level alarm light is controlled by an alarm switch installed in the glass water reservoir. This light is usually off, when the indicator light is on, it means that the glass water contained in the glass water storage tank is insufficient, and the glass water needs to be added. When the glass cleaning solution is added, the indicator lights off automatically.

General car dashboards.

When the water level light is on, because the water in the water tank will not decrease for no reason, it should be a problem with the cooling system, there are two possibilities, one is that there is a water leak somewhere in the Pengzhou system.

Second, the temperature is too high to make the cooling system pressure rise to squeeze out the water, if the water tank leaks can be temporarily added to the auxiliary water tank, and then try to drive to the nearby garage to deal with, please maintain the personnel to deal with it.

It is recommended that the owner should refer to the owner's manual first, and remember that because the engine operating temperature is extremely high, the water tank cover must not be easily opened, so as not to cause injury to the vapor that comes out instantly, and do not try to drive to the destination, causing serious damage to the engine.

Plus, there's less antifreeze:

Antifreeze is also called coolant.

Its function is to cool down the engine by stuffing and collapsing, if there is less antifreeze, or if you need to change it when you don't change it.

If the water temperature light is on but not the above situation, it means that there is a problem with the cooling fan for heat dissipation, and you must stop driving immediately, otherwise the temperature will rise suddenly and the pressure will turn the coolant into high-pressure water vapor.

Leakage can also cause deformation of the engine cylinder head or damage to the cylinder mattress pads.

In addition, the same model of coolant is recommended first, followed by distilled water.

1) The water temperature is between c---h.

2) C means 60 degrees, as long as the water temperature gauge pointer reaches C, it means that the water temperature has reached 60 degrees.

3) The temperature indicated by the h red grid is 110 degrees.

4) Generally speaking, the normal water temperature of the car should be about 90 degrees, that is, it is in the middle of the upper block, (the middle water temperature symbol is 85 degrees). It is not normal to exceed the normal water temperature or below 90 degrees, especially if the temperature is above 95 degrees. There are two reasons why the water temperature is too high in general:

If the antifreeze is insufficient or the thermostat is faulty, you should stop the car in time and go to check and repair it as soon as possible after the water temperature has cooled. Because high temperatures are extremely damaging to the engine.

5) The lamp fan is turned and the temperature gauge is down, which is normal.

It may be that the instrument panel is broken, it may be that the water temperature sensor is broken, and the engine data is read with the diagnostic instrument, if the water level can be read, but the meter is not displayed, it may be that the meter is broken, and vice versa, it may be that the sensor is broken. If you say that the instrument panel does not have a water temperature display area, it is the fault of the OEM, and the alarm light will only light up when it is hot.

The dashboard does not display the water temperature gauge mainly because of the problem of the display screen, the display screen is broken, as long as you go to the special department for maintenance, you can change the display screen to display the water temperature gauge.

This could be the case if there is some damage to the car's water temperature sensor, or if there is too little coolant on the car. You can check if the sensor is damaged or the coolant is the cause.

This is usually the case when the car is cold or in winter, as long as the vehicle is warmed up before starting. When the ignition switch is on"on "position, the high water temperature warning light illuminates and then turns off, indicating that the high water temperature sensor of the engine cooling system is working properly. If the water temperature indicator light is red, the water temperature is too high.

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The instrument collapse dial shows that the reason for the low water temperature is that the thermostat is damaged or the cooling fan is constantly running. The thermostat is a component that automatically plays the role of a valve according to the engine water temperature, and is generally installed at the outlet of the radiator and the inlet of the water pump; When the coolant temperature is low, the thermostat blocks the low-temperature cooling water from the radiator, so that it cannot enter the engine water jacket, and the water temperature in the water jacket can rise quickly, which is the small circulation that everyone often says; If the water temperature rises to a certain temperature, the valve gradually opens, and the coolant in the radiator begins to circulate again, so the coolant flows through the radiator and begins to slowly increase the water temperature, and dissipates heat to the atmosphere through the radiator to keep the engine water temperature at the appropriate temperature, which is the big circulation; If the thermostat fails, the valve cannot be closed, and the coolant is always circulating in a large manner, the water temperature of the engine may be too low; Or some cars simply remove the thermostat in order to reduce the temperature when the water temperature is high in summer, so that the water temperature of the engine will also be very low;

The first is the coolant warning light on the dashboard of the car, if it is on, it means that the water tank may be out of water or need to be refilled; Another way is to open the engine compartment while the car is cold and check that the coolant is sufficient. There are upper and lower limit scales of max and min on the side of the coolant kettle, and the liquid level is lower than the lower limit when the liquid level is lower than the lower limit when the coolant is cooled, and the amount of addition is subject to the scale on the edge of the kettle.

Automobile engines must be moderately cooled in a high-temperature working environment to keep them working at a suitable temperature to meet the requirements of good engine performance, durability and exhaust emissions. If the water tank is empty or the amount of water is insufficient, it will inevitably cause the engine to damage its internal components due to excessive temperature, and in serious cases, the engine will be scrapped.

When you find that the vehicle is driving with signs of "water rolling", it is best to stop the car immediately to cool down, of course, you can't turn off the engine immediately, because once the water pump is turned off, there is less coolant to circulate, and the engine of the car may be damaged if the cooling effect is not obtained.

How to protect yourself from water in your car's water tank. Generally, it is replaced every two years or every 3-40,000 kilometers, and the vehicle with high frequency should be replaced in advance according to the situation, and if the antifreeze coolant is found to be lower than the minimum value within the period of replacing the antifreeze coolant, it should be increased in time. It is important to note that by "water" we mean antifreeze and not tap water.

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