Those things in the car: What happens when the instrument sounds abnormally and when the car is shut off?

It is convenient for cars to give up, but when the car fails, it also brings people a lot of trouble. Knowing a few common mistakes in your car will make you less messy when it comes to car breakdowns.

If the car's warning light is off, this needs to be checked. First, it should be checked whether the light bulb of the warning light is damaged. If the light bulb is not damaged, check whether the relevant connection line of the warning light is short-circuited. Sometimes the car instrument will produce abnormal noise during driving. Why is this?

The abnormal noise of the instrument during driving usually occurs at the instrument panel and the interior trim panel of the vehicle door. There are many plastic parts in these parts. When the vehicle is driving on an uneven road surface, these plastic parts will generate resonance noise due to the vibration of the vehicle body. Seasonal and ambient temperature changes can also affect abnormal sound. When abnormal noise occurs, it is necessary to check if there are loose parts and tightening. It is also possible to install shock-absorbing noise-proof pads on the friction-contact parts, which will effectively eliminate the malfunction.

If the engine has a sudden burst of interrupted fire (or broken fuel) during normal driving, the speed of the vehicle will be unstable when the vehicle is running, which means that the driver will have a headache. If a brake fault occurs during fuel recovery, it is necessary to first eliminate whether there is a fault memory of the electronic control system. Generally, it needs to be detected by a dedicated computer detector. If there is no fault memory, check the throttle valve, injector, intake pressure sensor and related wiring, spark plug, high voltage wire, ignition coil, etc.