What Causes the Abnormal Noise During Acceleration?

Is a tire pressure of 190 caused by a puncture?

A tire pressure reading of 190 is highly likely to indicate a nail puncture, though it could also be a false alarm from the tire pressure monitoring system. It is recommended to pull over to the side of the road, turn on the hazard lights, and then use a pressure gauge to check the actual tire pressure. If the actual pressure is indeed 190, immediate attention at a repair shop is necessary. When a car's tire pressure is too low, the vehicle should not continue to be driven because the increased contact area between the tire and the road surface leads to abnormal temperature rises within the tire during driving. Additionally, severe deformation of the tire sidewall can accelerate the aging of internal steel wires and fabric layers, potentially leading to a blowout, and it also increases fuel consumption.

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How Long is the Validity Period of a Temporary Vehicle License Plate?

The validity period of a temporary vehicle license plate is divided into 15 days, 30 days, and 90 days, including weekdays and holidays. If the motor vehicle is used for scientific research or prototype testing and cannot be registered due to axle load, total mass, or overall dimensions exceeding national standards, a temporary license plate with a validity period of no more than 90 days will be issued. A temporary vehicle license plate is the only legal document that allows a new car to be driven on the road before the official license plate is issued. Driving without a license plate, if discovered by traffic police, will result in the seizure of the vehicle, a requirement for the party to provide the corresponding license, a 12-point deduction from the driver's record, and a fine. License plates are plates hung on the front and rear of the vehicle, typically made of aluminum, sheet metal, plastic, or paper, displaying the vehicle's registration number, registration region, or other relevant information.

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Where to Check the Manufacturing Date of Tires?

The manufacturing date of tires is marked on the outer side of the tire. Without needing to flip the tire, there is a set of numbers on the sidewall of the tire. The last four digits of this set of numbers provide information about the production date, consisting of four digits 'aabb'. The first two digits 'aa' indicate the week of the year, and the last two digits 'bb' indicate the year. The 11-digit number and letters immediately following the 'DOT' letters on the tire sidewall represent the tire's identification number or serial number. The last four digits of the serial number indicate the production date of the tire. The tire production date code format is as follows: the first two digits represent the production week, and the last two digits represent the production year. For example, if the last four digits of 'DOT' are '4117', it means the tire was produced in the 41st week of 2017.

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What Are the Reasons for Frequent Deviation During Straight-Line Driving?

Frequent deviation during straight-line driving is primarily due to the driver's lack of vehicle awareness, meaning they notice the vehicle's tilt too late—only when the deviation becomes very obvious. By then, correcting the direction often results in noticeable body sway. In reality, a vehicle cannot maintain a perfectly straight line while moving due to road surface influences. Therefore, timely direction adjustments are necessary when noticing any tilt. During straight-line driving, controlling the line of sight is crucial. Narrowed vision while driving can easily lead to vehicle deviation, which is a major reason why many novice drivers frequently experience this issue.

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How is the toll calculated if entering the highway on the 30th when it's free on October 1st?

If you enter the highway on the 30th and exit after midnight on October 1st, no toll will be charged. However, you need to pay attention to whether you will exit the province before the free period begins. If you do, you will have to pay the toll when passing through the provincial boundary toll station. It is recommended to calculate your departure time carefully or take a rest at a nearby service area before exiting the province, waiting until the free period begins to pass through the provincial boundary toll station, so you won't have to pay the toll. If you enter the highway during the free period but exit during the toll period, you will be charged. If you cannot exit the highway by 24:00 on the last day of the free period, you can exit at the nearest toll station just before the toll period starts, and the preceding section of the highway will remain free.

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What is the normal pressure for a car air conditioning compressor?

Here is an introduction to the normal pressure of a car air conditioning system: 1. Normal pressure: The normal high pressure of a car air conditioning system should be 1.3-1.7MPa (13-17kg/cm2 or 190-250Lbf/in2); the normal low pressure should be between 0.15-0.25MPa (1.5-2.5kg/cm2 or 20-35Lbf/in2). 2. Expansion valve adjustment: If the low pressure is higher or lower than this range, it indicates abnormal expansion valve adjustment. If the compressor has issues, it does not fall under this category. 3. High-temperature conditions: At idle, if the ambient temperature is high, such as under direct sunlight in summer, the high pressure may be slightly higher, up to around 2.5~2.8MPa, but it generally does not exceed 3.1MPa. Otherwise, the pressure switch will activate the protection function.

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What Causes the Abnormal Noise During Acceleration?

Is a tire pressure of 190 caused by a puncture?

How Long is the Validity Period of a Temporary Vehicle License Plate?

Where to Check the Manufacturing Date of Tires?

What Are the Reasons for Frequent Deviation During Straight-Line Driving?

How is the toll calculated if entering the highway on the 30th when it's free on October 1st?

What is the normal pressure for a car air conditioning compressor?

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