Body guard with "oil stain"
In some cars, when the elevator lifts to look at the chassis, you can see that somewhere in the body guard, there is an obvious "oil stain". Actually, it's not oil, it's a protective wax applied to the bottom of the car when it leaves the factory. When using the car, these wax, melted by heat, formed a "grease" that is not easy to dry. In this case, there is no need to tube, and there is no need to spend effort to get the melted wax off, without any impact!
When reversing and putting into reverse gear, the reverse gear cannot be put into reverse gear after pressing the clutch
Driving a manual shift car, I believe that most of my friends have encountered such a situation, when the vehicle needs to reverse and hang into reverse gear, the reverse gear can not be hung into, but many times the reverse gear hanging without any difficulty, and sometimes just a little force can answer the "hang in." Because the general manual transmission reverse gear is not equipped with the synchronizer that the forward gear has, and the front end of the reverse gear is not tapered, which leads to a feeling of luck when the forward gear is changed to the reverse gear, when the timing is correct, the gear and the teeth of the reverse gear are in the same position, it will be quite smooth.
Vehicle noise
Whether it's a high-end car. A low-grade car. Imported cars. Domestic cars. New cars. Old cars all have noise problems to varying degrees. Interior noise mainly comes from engine noise. Wind noise, body resonance suspension noise and tire noise, etc. When the vehicle is driving, the engine is running at high speed, and its noise passes through the firewall. The bottom wall is passed into the car; The body resonance generated by the car driving on the bumpy road, or the window that is opened at high speed cannot generate resonance will become noise. Due to the narrow space in the car, the noise can not be effectively absorbed, and sometimes the impact of each other will resonate in the car. During driving, the noise generated by the car's suspension system and the noise generated by the tires will be transmitted into the car through the chassis. Different suspension. Different brand of tires. The noise produced by different tire patterns and different tire pressure is also different; The wind noise generated by different body shapes and different driving speeds is also different. In general, the higher the speed, the greater the wind noise.
Post time: Apr-15-2024