First, the causes of excessive water temperature and testing procedures:
1, first check the water tank is normal water level, whether there is water leakage;
2, check whether the tank dirt too much, and whether there is sticky dirt;
3, testing Baotou North Ben heavy truck accessories fan work is normal, whether or not damaged;
4, check whether there is leakage of water outside the engine;
5, check the temperature sensor is not normal;
6, testing Baotou North Ben heavy truck parts pump is not working properly, lack of rotation or damage?;
7, check the Baotou North Heavy Truck fittings thermostat is not working properly, whether it has been damaged?;
8, is the water temperature meter fault, the value of the show error?;
9, related circuit failure, may not display the temperature of the water temperature;
10 、 is the cylinder mattress damaged?;
Two, the engine water temperature is too high, mainly prone to 6 kinds of failures:
1, in the traffic jam or idling for a long time, the engine water temperature meter shows too high, the electronic fan high speed block work time is too long, the engine noise increases, the weather high temperature air conditioning is the most obvious fault;
2, in the high temperature weather when the air conditioning, idle instability, speed fluctuations too large, when the rapid acceleration of the inability to, the engine has abnormal sound;
3, hot stall after ten minutes, and then start a bad car;
Sometimes 4 car driving, automatic flameout;
5, cold air conditioning refrigeration temperature is cool, hot car air-conditioning refrigeration effect is not good, but also have greater resonance buzz in air conditioning system;
6, when idling, clutch compressor suction off frequently, or even off, causing the car air conditioning refrigeration.
So how do you avoid these problems?
Generally, when the water temperature rises and goes to the red line position, or the engine lid suddenly emits white water vapor, it shows that the water temperature is too high. To meet this problem, first of all to confirm
The coolant is adequate, there is no leakage, and then check the electronic fan is normal rotation, temperature sensor is damaged, condenser tubes are blocked, etc.. Once these are found, there is
Abnormal, it is necessary to solve in time, because these problems can lead to water temperature is too high. Therefore, it is important to check whether the amount of coolant is adequate before driving
Pay attention to the thermometer. If water temperature is found to be on the high side and not because of insufficient water or leaking water in the water tank, then a thorough inspection should be conducted at the place of professional maintenance
Checked. If put aside, then because of the high temperature, piston wear will exacerbate, causing uneven temperature changes, affecting the power of the car, and the car will also be worn through the cylinder pad; piston rings appear
Scuffing failure, serious will cause permanent damage to the engine. So, if you find such a problem during driving, stop immediately in a safe place, and let the engine idle for a while before putting out
Fire, water temperature should be checked before cooling, add antifreeze, must slowly add, or easy to cause water tank burst.