What are the criteria for replacing brake discs?

What Causes Steering Wheel Wobble on Rough Roads?

Steering wheel wobble on rough roads occurs due to uneven road surfaces reacting on the tires, which then transmit through a series of steering components including the wheel hubs, steering axle, steering linkage, power assist mechanism, and steering column, causing slight wobbling or vibration of the steering wheel. This is a normal phenomenon as long as the steering wheel does not wobble when driving on smooth roads. Precautions for using the steering wheel include: 1. Do not turn the steering wheel too forcefully or make sudden turns; avoid turning the steering wheel when the vehicle is stationary. 2. When driving on bumpy roads, hold the steering wheel firmly with both hands to prevent loss of control and potential accidents. 3. Reduce speed when turning. 4. Gradually turn the steering wheel according to the curvature of the bend when entering a curve.

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What is the principle of a reversing radar?

The principle of a reversing radar is: under the control of the controller, the sensor emits ultrasonic signals. When encountering an obstacle, an echo signal is generated. After the sensor receives the echo signal, the controller processes the data to determine the position of the obstacle, and the display shows the distance and issues a warning signal to achieve the purpose of safe parking. The full name of the reversing radar is the reversing anti-collision radar, also known as the parking assist device. It is a safety auxiliary device for parking or reversing a car. It can inform the driver of the surrounding obstacles through sound or more intuitive display, eliminating the troubles caused by the driver's need to look around when parking, reversing, or starting the vehicle, and helping the driver to eliminate the defects of blind spots and blurred vision, thereby improving driving safety.

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What Causes the Smell of Gasoline Inside a Car?

The reasons for the smell of gasoline inside a car are: 1. The gasket inside the fuel tank cap is aged or uneven; 2. The fuel injector and throttle body have accumulated dirt due to long-term lack of cleaning, resulting in incomplete combustion of gasoline; 3. The gasoline filter is dirty or the connecting hose interface is loose or aged; 4. The gasoline vapor canister is dirty or malfunctioning; 5. The fuel tank connecting hose is aged or loose; 6. Poor sealing performance of the car. The solutions to eliminate the smell of gasoline inside a car are: 1. Replace the gasket inside the fuel tank cap; 2. Clean the fuel injector and throttle body; 3. Replace the gasoline filter or connecting hose; 4. Replace the gasoline vapor canister; 5. Replace the fuel tank connecting hose; 6. Repair the car's sealing performance.

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What to Do When Car Shock Absorbers Are Damaged?

If the car shock absorbers are damaged, they need to be replaced. If the car is still under warranty, the replacement can be done for free. Shock absorbers play a crucial role in the vehicle's suspension system, and their performance directly affects the smoothness of the ride and the lifespan of other components. Therefore, they should always be in good working condition. The working principle of shock absorbers is as follows: when the car body experiences relative movement due to vibration, the piston inside the shock absorber moves up and down, causing the oil inside the shock absorber chamber to repeatedly flow from one chamber to another through various pores. During this process, the friction between the pore walls and the oil, as well as the internal friction between oil molecules, creates a damping force that converts the car's vibration energy into thermal energy of the oil. The shock absorber then absorbs and dissipates this heat into the atmosphere. Essentially, the vibration energy is converted into heat through friction, thereby achieving the damping effect.

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Where is the Focus ambient light switch?

The Focus does not have a separate switch for the ambient lights. The ambient lights automatically turn on when the headlights are activated. If the interior ambient lights do not illuminate when the headlights are on, you need to first configure the settings in the vehicle's computer. In the lighting settings, simply check the interior lighting option. Ambient lights are decorative lighting, typically in colors such as red, blue, or green, designed to enhance the cabin's ambiance at night, creating a more vibrant and mood-enhancing atmosphere. Taking the 2021 Focus as an example, its body structure is a four-door, five-seater sedan with dimensions of 4674mm in length, 1810mm in width, and 1468mm in height, a wheelbase of 2705mm, a fuel tank capacity of 53 liters, a trunk capacity of 511 liters, and a curb weight of 1242kg.

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What to Do When Your Car Won't Start on the Road?

Solutions for when your car won't start on the road are: 1. Jump-start with jumper cables; 2. Push-start with manpower; 3. Seek assistance from your insurance company; 4. Check if the engine sensors are damaged; 5. Check if the battery is dead and recharge it; 6. Ensure sufficient fuel level and add more if needed. Reasons why your car won't start on the road include: 1. Dead car battery; 2. Low temperature causing reduced oil viscosity and engine speed; 3. Ignition system malfunction; 4. Insufficient fuel; 5. Excessive carbon buildup inside the engine; 6. Damaged fuel pump preventing fuel supply for combustion.

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What are the criteria for replacing brake discs?

What Causes Steering Wheel Wobble on Rough Roads?

What is the principle of a reversing radar?

What Causes the Smell of Gasoline Inside a Car?

What to Do When Car Shock Absorbers Are Damaged?

Where is the Focus ambient light switch?

What to Do When Your Car Won't Start on the Road?

What's the reason for MG6 not starting and showing no response?

How to Replace the Brake Light Bulb on a Sylphy?

Can I replace the coolant myself?

Where is the air conditioning filter located in an old Ford Focus?