Will 4S stores tamper with new cars?

What is the correct method for jump-starting a car battery?

Correct method for jump-starting a car battery is as follows: 1. Prepare two jumper cables. The rescue vehicle and the rescued vehicle should be parked head to head, with the rescue vehicle's engine running. 2. Locate the batteries of both vehicles. Identify the positive and negative terminals of the batteries clearly, ensuring not to connect them incorrectly. 3. First, connect one end of the red positive jumper cable to the positive terminal of the rescue vehicle's battery, then connect the other end to the positive terminal of the rescued vehicle's battery. Follow the same procedure with the black negative cable. 4. After connecting the jumper cables, start the rescued vehicle normally. Do not connect one vehicle and then proceed to connect another. Remember not to let the positive and negative terminals touch each other, as this may cause a short circuit. 5. Once the vehicle starts, remove the jumper cables one by one. Finally, let the rescued vehicle run for at least half an hour to recharge the battery.

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How is stopping midway judged in Subject 2 of the driving test?

The criteria for judging a stop during the driving test's Subject 2 are: within the test area, any pause of the vehicle for more than 2 seconds is considered stopping midway. This judgment is made because the GPS positioning during the test confirms that the vehicle has come to a complete stop for more than 2 seconds. Reasons for being judged as stopping midway: 1. Not slightly lifting the clutch when turning the steering wheel to full lock: Many stops midway occur during reversing into a bay, parallel parking, or making a U-turn in a narrow road at the moment the steering wheel is turned to full lock. This happens because once the steering wheel is turned to full lock, the front wheels turn at a very large angle, increasing driving resistance. At this point, the clutch should be slightly lifted to provide a bit more power to the vehicle, which can help avoid stopping. 2. Driving too slowly in normal practice: Some learners strictly follow the instructor's advice to control the clutch steadily and drive slowly, which seems very stable. However, during the test, if they encounter larger road bumps or uneven surfaces, they are very likely to stop. Therefore, driving slower is not always better. As proficiency increases later on, the speed can be slightly increased. 3. Not pressing the brake firmly enough when stopping midway during a test item: For example, after parking in a parallel parking space, if the first press of the brake stops the vehicle but the brake is not held down, and the right foot naturally relaxes while performing subsequent actions, causing the vehicle to roll back, and then the brake is pressed again to stop, this will also be judged as stopping midway. Therefore, once the brake is pressed, it should be held down while performing other actions, and the vehicle should be started again using the hill start method before moving off.

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What is the wading depth of the GL8?

The wading depth of the GL8 is 30 centimeters. When the water depth is one-third of the tire height, you can pass through with confidence as long as you operate correctly, and it will not cause unnecessary damage. When the water depth exceeds half of the tire height, you need to be cautious because this situation can easily lead to water entering the car. If the wading depth exceeds the bumper, you should be extra vigilant while driving to avoid water entering the engine. There are three scenarios for waterlogged vehicles: water level above the exhaust pipe but below half the wheel height, water level exactly at half the wheel height, and water level above half the wheel height. Generally, water reaching exactly half the wheel height will affect the car. Below is the detailed introduction: Water level above the exhaust pipe: If the water only covers the exhaust pipe, you can drive the car away in time. Water covering the exhaust pipe will not be sucked back into the engine, and engine stalling is mainly caused by water entering the engine's intake system, which is unrelated to the exhaust pipe being submerged. Water level exactly at half the wheel height: If the water level is exactly at half the wheel height, the car generally will not leak. However, if the soaking time is prolonged and the sealing strips age, the car may start to leak. In such cases, drive the car to a 4S shop, dismantle the interior, clean it, and let it dry. Water level above half the wheel height: If the water level exceeds half the wheel height, the engine may take in water, and the interior may also leak. In this situation, never start the engine to avoid damage to the engine or electronic components inside the car. Additionally, if the car is waterlogged and starting it causes damage, the insurance company will not cover the costs.

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How to Adjust Excessive Steering Wheel Play?

Excessive steering wheel play is usually caused by improper driving habits. Common issues include wear on the steering column universal joint, steering gear rack and pinion wear, and tie rod end wear. There is almost no way to adjust excessive play, and the following measures should be taken: 1. Check if the steering column universal joint is worn. If worn, it needs replacement. The steering column universal joint is essentially a universal joint that changes the direction of the steering column torque and prevents the steering column from impaling the driver in severe accidents. Wear on the universal joint can cause excessive steering wheel play and sometimes produce a clicking sound. 2. Inspect the steering gear rack and pinion for wear. If wear is found, timely replacement is necessary. When the rack wear is not particularly severe, the tightening force of the rack and pinion can be increased using the adjustment screw on the steering gear, but this will make the steering wheel heavier. 3. Check the tie rod ends for wear. If wear is present, replacement is also required. The steering gear has inner and outer tie rod ends. The inner tie rod end connects the tie rod to the steering gear rack, while the outer tie rod end connects the steering knuckle to the tie rod. Lifting the car and manually shaking the wheel can help feel the play in the tie rod ends and hear a rattling sound.

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How much can you exceed the 80 speed limit on the highway?

On the highway, the speed limit is 80, and exceeding 80 is considered speeding. However, currently, generally speaking, exceeding the speed limit by less than 10% on highways or national roads results in a warning, without points deducted or fines imposed. Here are the consequences of speeding: 1. Exceeding the speed limit by less than 10% results in a 50 yuan fine and 3 points deducted; exceeding the speed limit by more than 10% but less than 50% results in a 200 yuan fine and 3 points deducted; exceeding the speed limit by more than 50% but less than 70% results in a 500 yuan fine and 6 points deducted; exceeding the speed limit by more than 70% but less than 100% results in a 1000 yuan fine and 6 points deducted, and may also result in the revocation of the driver's license. 2. Exceeding the speed limit by 100% results in a 2000 yuan fine and 6 points deducted, and may also result in the revocation of the driver's license; exceeding the speed limit by less than 20% results in a warning; exceeding the speed limit by more than 20% but less than 50% results in a 100 yuan fine. 3. Exceeding the speed limit by more than 50% but less than 70% results in a 500 yuan fine (1000 yuan on highways), and may also result in the revocation of the driver's license; exceeding the speed limit by more than 70% but less than 100% results in a 1000 yuan fine (2000 yuan on highways), and the revocation of the driver's license.

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How Many Minutes Should a Car Air Conditioning System Be Evacuated?

Generally, it is recommended to evacuate a car air conditioning system for about 30 minutes. If the system is too dirty or the pipelines have been exposed to the atmosphere for too long due to rupture, it is advisable to evacuate for one hour, preferably during warmer weather. In summary, the longer the vacuum evacuation process, the more thoroughly moisture is removed from the system as the pressure decreases, which is more beneficial for the air conditioning system. The steps for evacuating a car air conditioning system are as follows: 1. Connect the refrigeration system, manifold gauge set, and vacuum pump properly. The high and low service valves on the compressor should be slightly open, while the high and low pressure manual valves on the manifold gauge set should be closed. Remove the protective covers from the vacuum pump's suction and exhaust ports, and connect the middle hose of the manifold gauge set to the vacuum pump's inlet and outlet. 2. Open the high and low pressure manual valves on the manifold gauge set, start the vacuum pump, and observe the low-pressure gauge needle, which should display a vacuum reading. 3. After 5 minutes of operation, the low-pressure gauge should reach 33.6 kPa (absolute pressure), and the high-pressure gauge needle should drop below the zero mark. If the high-pressure gauge needle does not drop below zero, it indicates a blockage in the system. Stop the process, address the issue, and then resume evacuation. 4. After the vacuum pump has operated for 15 minutes, observe the pressure gauge. If there are no leaks in the system, the low-pressure reading should reach an absolute pressure of 13.28-20.05 kPa. 5. If this value is not achieved, close the low-pressure manual valve and observe the low-pressure gauge needle. If the needle rises, it indicates a vacuum loss. Inspect for leaks, perform necessary repairs, and then continue the evacuation process. This step is essentially the vacuum leak test method. 6. The total evacuation time should not be less than 30 minutes. After this, close the low-pressure manual valve, and you can proceed to charge the system with refrigerant.

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Will 4S stores tamper with new cars?

What is the correct method for jump-starting a car battery?

How is stopping midway judged in Subject 2 of the driving test?

What is the wading depth of the GL8?

How to Adjust Excessive Steering Wheel Play?

How much can you exceed the 80 speed limit on the highway?

How Many Minutes Should a Car Air Conditioning System Be Evacuated?

What is the fuel consumption of the Fuxi 125?

How is the vehicle body touching the line judged in Subject 2?

Which gear should be used for automatic transmission on highways?

Can You Get a Driver's License at 60?