What causes severe shaking when parked in D gear?
2 Answers
Here are the reasons for severe shaking when parked in D gear: 1. Severe shaking when parked in D gear may indicate transmission issues, such as deteriorated or damaged transmission fluid, worn or loose transmission bearings, or bearing failure. 2. Excessive carbon buildup in the engine may require throttle body cleaning. 3. Problems with the fuel system, ignition components, or engine mounts can also cause severe shaking when parked in D gear. Here are solutions for D gear parking shake: When there's excessive carbon buildup inside the engine, the fuel injected by the cold start injector gets largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and making the engine hard to start. In this situation, the engine will only start easily after the carbon deposits have absorbed enough fuel to reach saturation.
I have extensive experience with severe shaking when stopping in D gear. If the engine mounts are aged or cracked, they can cause unstable engine operation and transfer vibrations to the body. A faulty transmission torque converter continuing to work while stopped can easily cause shaking. Low or unstable idle speed may be due to computer adjustment issues or carbon buildup in the fuel system affecting performance. Worn spark plugs causing poor ignition can make the engine run roughly and increase vibrations. Additionally, a dirty mass airflow sensor can disrupt the air-fuel ratio, leading to idle fluctuations and acceleration issues. It's recommended to check the mounts for obvious cracks, try shifting to N gear to observe any changes, and replace dirty transmission fluid promptly to alleviate the issue. Ignoring these faults may damage engine or transmission components, increasing repair costs—regular maintenance helps prevent problems before they occur.
