Why does the car shake when in D gear?
2 Answers
The reason why the car shakes when in D gear comes from the transmission, because the gear is in D gear, which is in a power connection state; the power of the engine is transmitted to the transmission, and the transmission transmits it to the wheels through the drive shaft. The brakes are pressed and the car cannot move forward, so it will shake. Precautions for driving an automatic transmission are as follows: 1. When shifting into S gear, the car can shift freely, but frequent use of S gear will seriously affect the transmission. 2. Avoid stepping on the foot brake for a long time when waiting for a red light. If the waiting time at an intersection is too long, you can shift the car into N gear and pull the handbrake. Stepping on the brake for a long time will cause the fuel temperature in the transmission to rise too high.
When I drive in D gear, the car feels shaky, as if the engine is unstable, which is very uncomfortable. This might be related to the engine idle speed, the spark plugs being burnt out or dirty, or inaccurate ignition, causing the car to vibrate more. In terms of the transmission, if the fluid is too dirty or insufficient, it can lead to poor power delivery and shaking. Another possibility is that the rubber mounts for the engine or transmission have aged and lost their cushioning effect, just like how my previous car was fixed. It's recommended to first check the condition of the spark plugs, listen for any abnormal engine sounds, and inspect the color of the transmission fluid—healthy fluid should be red. Avoid slamming the accelerator during daily driving and perform regular maintenance, including fluid changes, to reduce such issues. Timely repairs are crucial, as prolonged neglect can damage the car.
