What Causes the Steering Wheel Noise in the Buick Excelle?

How to Judge the Distance Between Cars

Specific techniques for judging the distance between cars while driving: Judging by fixed reference points on the car: When the midpoint of the left rearview mirror is on the left sideline, the distance between the car and the sideline is 1.5 meters. When the first wiper node is on the left sideline, the left wheel of the car is on the sideline. Judging by the position of the white line: When the white line is at the midpoint of the engine hood, the right wheel of the car is already on the line. When the white line is at the half position on the right side of the engine hood, the car is 30 centimeters away from the right sideline. When the white line is at the one-third position on the right side of the engine hood, the car is 60 centimeters away from the right sideline. When you can see the upper edge of the rear bumper of the car in front, the distance is 1m; when you can see the lower edge of the rear bumper, the distance is 2m; when you can see the lower edge of the rear tire, the distance is 3m; when the car's shadow occupies the entire rearview mirror, the distance is 3m; when the shadow occupies two-thirds of the rearview mirror, the distance is 5m; when the shadow occupies half of the rearview mirror, the distance is 9m; when the shadow occupies one-third of the rearview mirror, the distance is 12m. Reasons for maintaining distance: Avoid rear-end collisions caused by sudden braking of the car in front; if you follow too closely, you may not have enough time to brake, as the car will still move forward a distance even with sudden braking; give yourself time to react to emergencies.

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Which is Better: KDSS or Chassis Lift?

KDSS and chassis lift are two completely different things, each with its own advantages. Here are the relevant introductions: 1. KDSS controls the stabilizer bar, reducing body roll during turns and increasing suspension travel during off-road driving. 2. Chassis lift is only available in top-tier vehicles equipped with air suspension, used to improve the vehicle's off-road capability. Additional information on air suspension: 1. High-quality SUVs need to combine the comfort of a sedan with the off-road capability of an SUV. Air suspension systems are the best choice to achieve this goal. Based on road conditions and signals from distance sensors, the vehicle's computer determines changes in body height and then controls the air compressor and exhaust valves to automatically compress or extend the springs, thereby reducing or increasing the ground clearance of the chassis. This enhances high-speed stability or improves off-road capability on rough terrain. 2. Compared to traditional suspension systems, air-adjustable suspension is more complex in structure, leading to a higher likelihood and frequency of malfunctions than coil spring suspension systems. Using air as the power source to adjust chassis height also poses challenges in terms of the sealing of related components. Additionally, frequent adjustments to chassis height can cause localized overheating in the air pump system, significantly shortening its lifespan. Of course, with continuous advancements in technology, many of these issues have been effectively resolved, and the application of air suspension has become increasingly widespread across various vehicle models.

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How to Use a Multimeter to Check for Car Battery Drain?

Here are the steps to check for car battery drain using a multimeter: 1. Select the correct range. The multimeter has settings for measuring voltage, resistance, and current. To measure car battery drain, you must set the meter to the current measurement range. Since modern cars use direct current (DC), you should ultimately select the DC current range. 2. Open the hood of the vehicle you want to test for battery drain, turn off all electrical devices in the car, and lock the doors. If the vehicle has a remote control, use it to lock the car. 3. Use an appropriate wrench to remove the negative terminal of the battery. Then, connect the red probe of the adjusted multimeter to the vehicle's ground wire and the black probe to the negative terminal of the battery. 4. After completing the above steps, wait for 30 seconds and read the value on the multimeter to determine if there is a battery drain issue. Modern cars have numerous electrical devices, and a dark current below 50 milliamperes is considered normal. If the reading exceeds 50 milliamperes, you should inspect the electrical devices for potential leaks. 5. If the suspected leaking device shows no abnormalities during the inspection, the problem becomes more complex. In this case, you will need to use the elimination method by removing the fuses of the car's electrical devices one by one while observing the changes in the multimeter's reading. Continue this process until the reading falls within the normal range, thereby identifying the fault point.

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Can LED car lights pass the annual inspection?

Whether modified LED headlights can pass the annual inspection depends on the specifications and performance of the modified headlights. If the color temperature, brightness, and beam angle of the modified headlights meet the national requirements and do not affect driving safety, they can pass the inspection. There are two main aspects to check: Whether the brightness meets the requirements, meaning the brightness should not be less than 1400 lumens. Whether the beam angle is up to standard, as long as the high and low beam angles are normal. Essentially, as long as the modified LED headlights do not compromise driving safety, they can pass the annual inspection. Relevant regulations for vehicle annual inspections: Vehicles that fail the inspection must be repaired within a specified period. If they still fail after the deadline, the vehicle management office will confiscate their license plates and prohibit further use. Vehicles that do not participate in the inspection without reason or fail the inspection are not allowed to drive on the road or be transferred. Vehicles that meet the scrapping conditions or exceed the prescribed service life will not be inspected, and their license plates will be revoked, their records deleted, and they will be scrapped.

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What is the most severe type of pollution caused by vehicle exhaust on a global scale?

Vehicle exhaust is the most significant source of lead pollution worldwide. Relevant information about vehicle exhaust is as follows: 1. Vehicle emissions can harm human health, which is why China has begun using unleaded gasoline. 2. Vehicle exhaust primarily refers to the waste gases emitted from the tailpipe. These gases contain 150-200 different compounds, with the most harmful to humans being carbon monoxide, hydrocarbons, nitrogen oxides, lead compounds, and particulate matter. The diffusion of these harmful gases into the air causes air pollution. 3. In addition to directly endangering human health, exhaust emissions also have profound impacts on the environment. Sulfur dioxide in the exhaust has a strong irritating odor and, when reaching certain concentrations, can easily lead to "acid rain," causing soil and water sources to acidify and affecting the growth of crops and forests.

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What does EVP failure mean?

EVP failure refers to Electric Vacuum Pump failure. Here are the relevant details: Function: The EVP monitors changes in vacuum within the turbocharger via a vacuum sensor, ensuring adequate boost under various driving conditions. It is commonly used in electric vehicles, turbocharged gasoline engines, and diesel engines. When applied to diesel engines, it can replace traditional mechanical vacuum pumps to save energy. Inside the vacuum pump, an electric motor serves as the power source, capturing air and sweeping it through the pump to create a localized vacuum behind it. Consequences of failure: In a vehicle's brake assist system, if the vacuum booster fails to obtain sufficient vacuum or cannot obtain vacuum at all, the assist effect of the braking system will be significantly reduced.

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What Causes the Steering Wheel Noise in the Buick Excelle?

How to Judge the Distance Between Cars

Which is Better: KDSS or Chassis Lift?

How to Use a Multimeter to Check for Car Battery Drain?

Can LED car lights pass the annual inspection?

What is the most severe type of pollution caused by vehicle exhaust on a global scale?

What does EVP failure mean?

What is an ETC card for cars?

Where is TEIN suspension produced?

Is it necessary to drive a new car on the highway?

How to Contact the Owner When a Car Is Blocking the Way?