What are the causes of engine vibration when stepping on the accelerator?

Do Cars Have Lightning Protection?

Cars do not have lightning protection functionality. Here are the specific details: 1. Reason: Since a car's outer shell is a large metal enclosure, it forms an equipotential body, so people inside the car do not need to worry about being struck by lightning. However, the vehicle itself is a conductor that can easily attract lightning. If lightning strikes the vehicle, walking near it may expose you to ground-transmitted current. 2. Precautions: (1) During thunderstorms, try to avoid using mobile phones because the signal magnetic field of the phone changes during a thunderstorm. The powerful discharge of lightning to the ground generates a strong electromagnetic field in the surrounding area. Therefore, it is recommended that car owners retract external antennas and temporarily turn off car audio systems during thunderstorms to prevent lightning strikes from introducing current into the car and causing electrical circuit failures. (2) When a car is struck by lightning, the instantaneous high voltage may also damage the electronic components inside the vehicle, causing electronic devices to malfunction. Additionally, never rashly exit the car to inspect the vehicle's condition, as the outside is far more dangerous than the inside.

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What are the effects of a car being exposed to rain for a day?

The main effects of a car being exposed to rain for a day are: 1. The car's paint surface may be corroded: In China, pollution is widespread, and some areas are heavily polluted, resulting in rain that is mostly acid rain. Therefore, rain exposure means the car paint is directly exposed to acid rain, which can corrode the paint, leading to rain marks, oxidation, and even cracking. 2. Dampness and mold: Compared to sunny days, the interior of the car is more prone to dampness and mold after rain. Additionally, rainwater can seep into the car's seams, causing metal parts to rust and corrode. Therefore, after the rain stops, accumulated moisture should be removed as soon as possible to prevent mold growth. 3. Bacterial growth: It is well known that bacteria thrive in damp environments, and the more humid the area, the faster bacteria multiply, especially during the rainy season. In dry conditions, ventilation can help maintain air circulation inside the car. However, during the rainy season, avoid opening windows for ventilation, as this can lead to rapid bacterial growth inside the car. 4. Rainwater entering the headlights: Water in the headlights can affect their brightness, and excessive water may even damage them. It can also alter the direction of light refraction, posing a safety hazard while driving.

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Why is Water Flowing from the Exhaust Pipe?

Water flowing from the exhaust pipe is a normal physical phenomenon. Under ideal conditions, gasoline completely burns to produce carbon dioxide and gaseous water. The gaseous water condenses in the exhaust pipe to form liquid water, which is then expelled through the exhaust pipe once it reaches a certain volume. This 'perfect combustion' characteristic only occurs when the engine is operating under ideal conditions, so there is no need for concern. There are two other scenarios where water may appear: 1. When water vapor is injected, it evaporates and condenses into droplets in the exhaust pipe, leading to water expulsion. This is commonly observed when starting a car parked during winter or the rainy season, where white smoke may also be seen from the exhaust pipe. However, once the engine warms up, the white smoke will disappear, and no repair is necessary. 2. Large amounts of white smoke emitted from the exhaust pipe are also water vapor, but this is due to water mixing into the combustion process rather than being a product of complete gasoline combustion. Therefore, if the exhaust pipe emits significant water vapor, the owner should check for water accumulation in the fuel tank, inspect whether the cylinder gasket is damaged, if there are cracks in the cylinder block, and whether the cylinder liner sealing ring is in good condition.

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How to Observe Reference Points for Curve Driving in Driving Test Subject 2?

Driving Test Subject 2 curve driving reference point observation methods are as follows: 1. After entering the S-curve, pay attention to observe. When the hood overlaps with the right-side curve, steer one full turn to the left; 2. As the vehicle continues forward, when the left front of the car overlaps with the right-side curve, steer half a turn to the left, then make slight adjustments to keep the front of the car always overlapping with the curve; 3. Before entering the right curve, observe carefully. When the left front of the car aligns with the left-side curve, straighten the steering wheel; 4. When the vehicle enters the right curve, and one-third of the left front hood aligns with the curve, steer one full turn to the right; 5. Continue observing. When the right front of the car overlaps with the left-side curve, start steering half a turn to the right, then make slight adjustments to keep the front of the car always overlapping with the left-side curve; 6. Exit the curve driving with the front of the car straight and the steering wheel centered.

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What is the actual fuel consumption of the 2007 Odyssey 2.4?

The average fuel consumption of the 2007 Odyssey 2.4 with automatic transmission is 10.19L/100km, but normal fuel consumption should be based on actual usage as it is related to multiple factors. The main factors include the following situations: 1. Cold start: When starting a cold engine, do not artificially extend the warm-up time, as it will have the opposite effect. Just pay attention not to drive at high speed immediately after ignition. You should drive slowly for a few minutes and then gradually increase the speed. In winter, the slow driving time can be extended slightly. 2. Incorrect driving: Improper driving habits have the greatest impact on fuel consumption. During driving, especially in heavy traffic, at red lights, or when changing lanes, sudden acceleration and hard braking are the most common issues. Experts conducted fuel consumption tests during acceleration driving. After the vehicle entered the test section at a constant speed, the test driver fully pressed the accelerator to complete the specified distance. It was found that fuel consumption increased by 2 to 3 times compared to driving at a constant speed.

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How Many Kilometers for the Break-in Period of a Family Car?

A new car is considered to have passed its break-in period after traveling 5,000 kilometers. Generally, the first 5,000 kilometers of a new car are regarded as the break-in period. Engine considerations during break-in: During the break-in period, friction between engine components may generate some metal shavings. Driving at excessively high speeds can cause the engine to rev too high, potentially leading to cylinder damage. Break-in period precautions: The key points during a new car's break-in period are maintaining steady speeds, avoiding sudden acceleration or braking, and preventing high RPMs. After completing the break-in period, it's recommended to drive at highway speeds. Additionally, pay attention to any unusual noises. If there are installation or configuration issues with components, remember to address them during the first free maintenance service. After this period expires, repairs for certain damaged components may not be free.

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What are the causes of engine vibration when stepping on the accelerator?

Do Cars Have Lightning Protection?

What are the effects of a car being exposed to rain for a day?

Why is Water Flowing from the Exhaust Pipe?

How to Observe Reference Points for Curve Driving in Driving Test Subject 2?

What is the actual fuel consumption of the 2007 Odyssey 2.4?

How Many Kilometers for the Break-in Period of a Family Car?

What are the differences between the 2017, 2018, and 2019 Audi A4L models?

What is the reason for not being able to shift gears after driving through water?

How to Locate a Car?

What glue to use for a detached car roof liner?