What to Do When the Car Shakes in D Gear While Braking?
2 Answers
Solutions for shaking when braking in D gear are as follows: 1. The shaking originates from the transmission. When the gear is in D, it is in a power connection state. The engine's power is transmitted to the transmission, which then sends it to the wheels via the driveshaft. Normally, the car should move forward, but if the brake is pressed, it cannot move. As a result, the transmission continuously holds back force, leading to shaking. This kind of shaking occurs in every car, but some cars may feel it more noticeably, while others may not feel it as much or even not at all. This is because these cars have better noise control and vibration isolation, so although the shaking occurs, it does not transmit into the cabin and is dissipated midway. 2. If the car still feels noticeably shaky when shifted into N or P gear, and the shaking is even worse in D gear, then there might be an issue with the car. There are two scenarios: If the engine itself is shaking, causing the entire car to shake, the engine needs to be checked. Common causes include carbon buildup in the engine or worn-out spark plugs that need replacement. If the engine runs smoothly but the cabin still feels noticeably shaky, it is usually due to damaged engine mounts, also known as engine mounts or cushions. Replacing them should eliminate the shaking.
After driving for so many years, I've encountered the issue of D-gear brake shudder several times. It feels like the car is throwing a tantrum, which really affects the driving mood. Usually, the problem lies in unstable engine idling, such as a dirty throttle body or malfunctioning ignition system. Excessive carbon buildup can also make the engine struggle to breathe. I remember one time my old car kept shaking like this. I first checked the idle speed in neutral and found the needle jumping erratically. Later, I took it to a repair shop to clean the throttle body and fuel injectors, and the problem was solved. Additionally, transmission issues can also cause shaking, such as an unbalanced torque converter or aged transmission fluid. If the shaking is severe and accompanied by strange noises, it's best to get it checked at a professional shop immediately. Regular maintenance like cleaning the engine bay and changing spark plugs can help prevent such problems. Cars are delicate; take good care of them, and they'll cause fewer troubles.
