What are the reasons for the vibration in Binyue's D gear?

[SanErin]

The reasons for the vibration in Binyue's D gear are: 1. The engine speed is too high: the hydraulic torque converter transmits more power, and the impact force when shifting gears is large, resulting in obvious vibration; 2. The brake is not pressed tightly: the engine power will be directly transmitted to the wheels when shifting gears, and if the brake is not pressed tightly, it will cause the wheels to move slightly when shifting to D gear, making the vehicle move forward and causing strong vibration; 3. The brake is released too early: without the restriction of the brake, the driving wheels will gain power when the gear is engaged, causing the vehicle to move forward directly and resulting in vibration. To avoid body vibration when shifting to D gear, shift gears when the speed is stable, press the brake tightly when shifting gears, and release the brake only after the power is transmitted to the wheels. Taking the Geely Binyue as an example, its body dimensions are: 4330mm in length, 1800mm in width, and 1609mm in height, equipped with a 1.5t engine, 7dct transmission, and a hybrid system with ternary lithium batteries.

[MacJeremiah]

My car has shaken a few times before when in D gear. Usually, the most reliable place to look for issues is the ignition system—worn spark plugs or cracked ignition coils can cause unstable engine operation. Transmission problems are also troublesome; when automatic transmission fluid is insufficient or deteriorated, the torque converter can stutter, causing gear transmission to shake, especially noticeable at low speeds or when stopping. If the engine mount rubber parts are worn out or sensors like the crankshaft position sensor misread the RPM, the entire car can vibrate. I suggest first checking the spark plugs and fluid levels yourself and simply replacing them if needed. If that doesn’t work, you’ll need to take it to a shop for an ECU diagnostic scan or to check the mount condition. Delaying this issue for too long can damage the transmission, making repairs expensive and time-consuming.

[ORicardo]

Having driven many cars, I've found that the common causes of vibration in the Bin Yue when in D gear can be divided into two parts: On the engine side, issues like damaged cylinder wires or clogged intake systems can cause uneven air flow, leading to unstable engine operation. On the transmission side, problems such as torque converter failure or low oil pump pressure can result in insufficient lubrication, causing gears to rattle and transmit vibrations. Additionally, aging or loose engine mounts can lead to ineffective body cushioning, resulting in severe shaking. From personal experience, high summer temperatures can accelerate oil degradation, making this issue more likely to occur. Remember to change the oil regularly and perform maintenance—don't wait until the seats start shaking to take action, as this not only affects driving safety but also shortens the lifespan of components.

[DiMarcus]

Don't overlook D-gear vibration, often caused by minor issues accumulating: ignition system problems like worn-out spark plugs or faulty coils create uneven engine operation that transmits tremors; torque converter in automatic transmissions fails to engage effectively at low speeds, causing noticeable torque fluctuation; hardened or worn engine mount rubber loses its damping effect. As an owner, I'd first replace spark plugs then check transmission fluid level - that solves most cases; severe situations require inspecting sensors like crankshaft position and verifying transmission control module parameters for accuracy.