7 signs before a car breaks down
- 1. Sudden abnormal sound
Car abnormal noise is the “alarm” of car failure, but for those who do not have a basic basis for car maintenance, it is difficult to judge what the car’s noise is normal and what is abnormal, but most people can feel the sudden sound . When there are sudden noises that were not there before, it means that the car has been changed or damaged. It should be repaired as soon as possible.
- 2. Increased fuel consumption
If a car runs under good conditions, the fuel consumption is generally stable and there will be no major fluctuations. But if the fuel consumption suddenly increases within a certain period of time, it is necessary to consider whether it is because the car is malfunctioning.
- 3. Oil leakage
This problem is obvious. If there is a greasy stain on the ground after the vehicle is parked for a long time, then there must be a problem with the car. However, it should be noted that when the air conditioner is turned on in the summer, water will drip off the car to distinguish between oil stains and water stains.
- 4. Exhaust color is abnormal
When the engine is working normally, the exhaust gas should be inconspicuous smoke. When the temperature is cold in winter, it will also emit white hot gas like a normal boiler. If the exhaust gas is other colors, black or blue, or it is not in winter. The white exhaust indicates that the engine has problems such as incomplete combustion, burning of engine oil, and the passage of coolant, etc., and it is generally more serious and needs immediate repair.
- 5. Engine overheating
The engine has a normal operating temperature. This temperature is generally expressed by the temperature of the engine coolant, which is often referred to as the water temperature. If the water temperature is too high, it must be a variety of problems, and even if there is no water temperature meter on the car, there will be a high temperature warning light. Pay attention to this.
- 6. Odor appears
The odor here does not refer to the smell of interior decoration when a new car is used, but some burnt smell and gasoline smell. The smell of gasoline indicates that there is a leak in the oil circuit or the vaporized carbon canister has failed, and there are more reasons for the burnt smell: short circuit, burnt clutch, or forget to release the handbrake.
- 7. Uneven tire wear
The tire is the only place where the car is in contact with the ground, but in order to achieve various performances, the wheels are not installed vertically on the car, and have various positioning parameters.