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What Causes Vehicle Body Vibration During High-Speed Braking?

1 Answers
SanLeonardo
07/30/25 4:21am
The causes of vehicle body vibration during high-speed braking are: 1. Uneven brake disc surface with excessive radial runout; 2. Significant deviation in wheel alignment data; 3. Excessive or insufficient tire pressure; 4. Abnormal tire wear; 5. Wheel rim deformation. Braking, also known as deceleration, refers to the action of stopping or reducing the speed of moving locomotives, vehicles, other transportation tools, or machinery. The principle of braking involves fixing a wheel or disc on the high-speed shaft of the machine and installing corresponding brake shoes, bands, or discs on the machine base to generate braking torque under external force. Common braking devices include drum brakes and disc brakes.
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What is the difference between 280tsi and 330tsi?

Here are the differences between 280tsi and 330tsi: 1. Different engine displacement; 2. Different maximum horsepower and torque. 280tsi: Equipped with a 1.4-liter turbocharged direct-injection engine codenamed EA211. This engine has a maximum power of 110kw, a maximum torque of 250 Nm, a maximum power speed of 5000 to 6000 rpm, and a maximum torque speed of 1750 to 3000 rpm. 330tsi: Equipped with a low-power 2.0-liter turbocharged engine codenamed EA888. This engine has a maximum power of 137kw, a maximum torque of 320 Nm, a maximum power speed of 5000 rpm, and a maximum torque speed of 1600 to 4000 rpm. The naming method of tsi is a characteristic of Volkswagen, where the numbers represent the torque grade mark value in N·m, and tsi represents the engine technology type.
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How to Turn Off the Radio in a Buick?

Method to turn off the radio in a Buick: Press the button in the middle of the volume control below the center console to turn off the radio. Buick offers models such as the Excelle, Verano, Envision, and Regal. For example, the Buick Excelle is a premium mid-size car launched by SAIC General Motors. The Buick Excelle is equipped with a 1.0T turbocharged engine based on a small engine architecture, delivering a maximum power of 85kW and a maximum torque of 170Nm, both of which surpass the previous generation engine, providing a more dynamic driving experience. Advanced turbocharging technology significantly reduces the lag in power output typical of traditional turbocharged engines, ensuring strong torque at low speeds and more responsive acceleration.
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Differences Between Qingdao FAW and FAW Jiefang

Qingdao FAW and FAW Jiefang are both part of the FAW Jiefang Group, but they have the following differences: 1. Different production locations: Qingdao FAW and FAW Jiefang are located in Qingdao and Changchun, respectively. 2. Different products: Their product offerings also differ. FAW Jiefang's flagship products are the J6P and J7 series, which are highly favored by many truck owners. Currently, Qingdao FAW's best-selling model is the JH6, which holds significant importance for the company. Through continuous improvements, this model has evolved from initially being rarely noticed to now being highly popular. 3. Different engines: Different series of vehicles use different engines. FAW Jiefang primarily equips its vehicles with its own Xichai engines, known for their significant fuel-saving advantages, making them the preferred choice for many truck owners. Qingdao FAW mainly uses Weichai engines.
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What are the reasons for the Buick Excelle engine shaking?

The reasons for the Buick Excelle engine shaking: 1. Engine misfire: One or more cylinders of the engine are not working properly; 2. Engine mount aging or loosening; 3. Carbon deposit issues: Carbon deposits include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, and intake carbon deposits; 4. Fuel system failure: Adding incompatible fuel grades affects the car's power output, leading to reduced performance. The Buick Excelle is the fourth model produced by Buick based on the GM global platform, following the Regal, LaCrosse, and Enclave. The Buick Excelle has a length of 4609mm, a width of 1798mm, a height of 1486mm, and a wheelbase of 2640mm.
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Where is the cabin air filter located in the Buick Excelle?

The cabin air filter in the Buick Excelle is located behind the glove compartment on the passenger side. If you notice odors or dust blowing out when using the air conditioning, it indicates that the cabin air filter is too dirty and needs replacement. It may also be necessary to clean the blower and the air conditioning ducts. The cabin air filter serves to purify the air entering the vehicle interior from the outside, improving air cleanliness and providing a healthy environment for passengers. The Buick Excelle is the fourth model produced by Buick on General Motors' global platform, following the Regal, LaCrosse, and Enclave. In terms of interior features, the Buick Excelle is equipped with a three-spoke multifunction steering wheel, ice-blue sporty instrument panel, fully automatic air conditioning system, one-touch start function, rear air conditioning vents, and a versatile 400L trunk.
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What is the appropriate tire pressure for light trucks?

For light trucks, the front tire pressure is suitable at around 9, and the rear tire pressure is suitable at around 11. Below is relevant information about tire pressure: 1. Excessive tire pressure: It will affect the tire's friction and adhesion, weakening the braking effect; it will cause car vibration, reducing comfort; it will accelerate wear on the central part of the tire, shortening the tire's lifespan; it will increase the load on the car while driving; it will reduce puncture resistance, making it easier for sharp objects like nails to penetrate the tire, causing a blowout. 2. Insufficient tire pressure: It will increase friction with the road surface, raising fuel consumption; the steering wheel will become heavier, making the car prone to veering; the tire's movement will increase, leading to abnormal heating; friction on the tire will intensify, shortening the tire's lifespan; the tire will become softer, reducing its strength, which may cause a blowout; cracks are more likely to appear on the tire side, promoting rubber aging and accelerating wear on the tire shoulder.
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