Treatment of common diseases of automobile in winter
Just as people are prone to catch a cold in winter, vehicles are also prone to "illness" and malfunction in winter. Next, let's talk about the common faults of cars in winter and their solutions.
The battery is dead: the electrolyte activity of the battery is relatively low at low temperature in winter, and the power storage capacity is poor. Especially for electric vehicles, it is particularly important to check the battery charge at all times. Don't forget to turn off the air conditioner, headlights and other electrical equipment after the flameout, so as to avoid power failure and throw yourself into the cold halfway.
Difficult to start: it is always difficult to start the engine in winter. In addition to the weakness of the vehicle caused by the dead battery, it may also be caused by carbon deposition at the engine intake. It is recommended to clean the throttle before winter to reduce this situation. In addition, the viscosity of engine oil will increase in winter, which makes the engine resistance increase, which is also one of the reasons for the difficulty in starting the engine. Oil with thinner viscosity can be changed appropriately.
Acceleration weakness: Low-temperature acceleration weakness is also one of the common faults in winter, which mainly shows that the car just started, but it can't add up when it needs to accelerate, resulting in a pulling feeling and returning to normal after a few minutes. This situation may be caused by excessive carbon deposition in spark plugs and insufficient hot car. When the water temperature reaches normal temperature, the fault disappears, or the spark plug or ignition coil fails, indicating that one or more cylinders are on fire, and the fault light will give a prompt. It is suggested that the owners of old cars should check the spark plugs regularly, and clean or replace them in time if there is too much carbon deposit or too large gap.
ABS fault light is on: In winter, the ABS fault light gives an alarm, mostly because the ABS sensor inside the wheel is in poor contact with the connected magnetic induction coil when the car is driving in snowy days, which leads to the failure of ABS during self-inspection. Generally, when the snow dries, the fault will disappear. If the alarm light still does not go out, you can go to the maintenance station to clean the ABS sensor and carry out fault detection to see if there are any other problems.
Water temperature does not rise: the engine temperature does not rise or the heating rate is very slow, and the warm air is not hot. This problem is more common. Most of them will show that the water temperature rises when there is traffic jam or red light, and the temperature drops rapidly when the car is driving. The main reason for this situation is the failure of the thermostat, which always keeps a large circulation state and is improved immediately after replacing the thermostat.
Idle jitter of cold car: when the engine starts cold car, if the engine fails to idle quickly without cold car, or the speed is unstable, the fault causes generally include.
1. Engine mechanical failure, such as low pressure in each cylinder.
2. Air intake system failure, such as air leakage in the air intake pipe.
3. Excessive carbon deposition on the back of intake valve and intake pipe.
4. Engine management system failure, such as incorrect water temperature and intake air temperature signals, and line failure.
5. There are faults in the ignition system, such as excessive carbon deposition in the spark plug or incorrect gap, leakage of high-voltage wire and distributor cover, and damage to the ignition coil.
6. Faults in the oil supply system, such as excessive colloidal carbon deposition in the fuel injector, cause the fuel injector to be closed loosely or blocked.