What Causes a Car to Be Very Noisy?

What to Do When the Car's Three-Way Catalytic Converter Glows Red?

If the car's three-way catalytic converter malfunctions, it should be taken to a 4S shop for inspection and repair. The following explains the reasons why a car's three-way catalytic converter may glow red: 1. Exhaust system blockage: This prevents the engine's exhaust gases from smoothly exiting after passing through the three-way catalytic converter, leading to poor heat dissipation and causing the ceramic core inside the catalytic converter to turn red under high temperatures. 2. Broken ceramic liner inside the three-way catalytic converter: This prevents exhaust gases from passing through smoothly, generating high temperatures. If the front intake part of the catalytic converter is red while the rear exhaust part is normal, the issue lies with the catalytic converter itself. Otherwise, the problem is with the exhaust pipe.

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What Items Are Included in a Car's Fourth Maintenance?

Car's fourth maintenance primarily involves replacing the oil filter and gear oil, cleaning the air filter and cabin air filter, followed by various inspections. In addition to routine maintenance and oil changes, it includes replacing spark plugs. It is particularly advisable to replace the original spark plugs after 20,000 kilometers. For vehicles used for less than two years, it is necessary to top up the antifreeze and check the brake fluid. For vehicles that have been in use for two years, it is recommended to replace both the antifreeze and brake fluid. Additional Information: Many items in the regular maintenance schedule are not prone to damage under normal driving conditions, so they only require inspection. These include: tire side slip condition, brake function and pedal free play, hand brake function, clutch free play and clutch fluid level, steering wheel free play, air conditioning system, instrument functions, seat belts and warning systems, power windows, sunroof, rearview mirrors, lights, wipers, horn, antenna, central locking system, battery fluid, air conditioning compressor belt, distributor cap and rotor, high-voltage wires, ignition timing, idle speed and exhaust emissions, power steering system, fuel lines, driveshaft dust boots, exhaust muffler, suspension fastening nuts (chassis inspection), tires and rims, wheel bearings, front brake caliper oil pipes, secondary air injection system, positive crankcase ventilation system, evaporative emission control system, intake air temperature control system, catalytic converter, and oxygen sensors, among others. These components will only be replaced or adjusted by the maintenance facility if they are found to be damaged (abnormal) during the inspection.

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How Often Should the Clutch Disc of an Automatic Transmission Car Be Replaced?

Automatic transmission clutch discs generally do not need replacement. There are several types of automatic transmissions: AT, CVT, AMT, and DCT. Among them, AT and CVT do not have clutch discs, while AMT and DCT do. As long as the vehicle is used normally and maintained regularly (checking and replacing transmission fluid), theoretically, the clutch disc of an automatic transmission does not need to be replaced throughout the vehicle's lifespan. Here is more information about automatic transmission cars: 1. An automatic transmission does not require the driver to manually shift gears; the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. Typically, automatic transmission cars have six gear positions, arranged from top to bottom as: P, R, N, D, S, and L. 2. Automatic transmission cars usually use a hydraulic transmission device to replace the mechanical clutch of manual transmission cars, so there is no clutch pedal. When the engine speed is low, the torque transmitted by the fluid is limited and insufficient to propel the car forward. When the gear lever is placed in the drive position and the brake pedal is released, as the accelerator is pressed and the engine speed increases, the transmitted torque increases, pushing the car forward. 3. The greatest advantage of automatic transmission cars is convenience, especially in heavy traffic.

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What is the purpose of the 1, 2, 3 gears in an automatic transmission?

The 1, 2, 3 gears in an automatic transmission represent the low gear modes of the transmission. When shifted into 3, the transmission will only switch between gears 1, 2, and 3; when shifted into 2, the transmission will only switch between gears 1 and 2; when shifted into 1, the transmission will remain in 1st gear. More details are as follows: 1. The most common scenario for using these gears is when driving uphill or downhill. The steeper the slope, the lower the gear should be. Additionally, these gears can be useful during rainy days, icy or snowy road conditions, and in heavy traffic. 2. When climbing a long, steep slope, if left in D (Drive) mode, the transmission will continuously shift up and down, which can cause significant wear and tear on the transmission. In such cases, shifting to 2nd gear ensures the transmission only shifts between 1st and 2nd gears, minimizing unnecessary gear changes. 3. When descending a long, steep slope, if left in D mode, the driver would need to constantly use the brakes to control speed. Prolonged and frequent use of the brakes can lead to overheating, reduced braking efficiency, and a significant reduction in brake pad lifespan. In this situation, engine braking (using lower gears) supplemented by occasional braking is recommended. This principle is similar to downshifting in a manual transmission when going downhill.

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Why is the front brake disc hot while the rear one is not?

The front brake disc being hot while the rear one is not is a normal situation. The specific reason is that when the vehicle brakes, the front braking system engages first, followed by the rear braking system. This reduces friction on the rear wheel braking system, preventing the rear wheels from heating up, so there is no need to worry too much. Methods to determine when to replace the vehicle's brake discs are as follows: 1. There is no exact replacement time for brake discs. During the use of the vehicle, if the braking distance becomes longer or abnormal noises occur during braking, the brake discs should be inspected; 2. Check whether the brake discs are excessively worn or cracked. If any issues are found, they should be replaced promptly to avoid affecting the normal use of the vehicle.

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What does the violation code 1353 mean?

Violation code 1353 means: Driving a truck with cargo exceeding the approved load capacity by less than 30%. According to Article 92, Paragraph 2 of the "Road Traffic Safety Law of the People's Republic of China" and Article 106, Paragraph 1 of the "Road Traffic Safety Regulations of Ningxia Hui Autonomous Region," the penalty includes: 3 demerit points; other penalties: vehicle detention. Traffic violation codes consist of four to five digits, classified according to the principles of the traffic law. The order from left to right is: the first digit represents the behavior classification code, the second digit represents the demerit point classification code, the third and fourth digits represent the sequential code, and the fifth digit represents the item number. First digit: Behavior classification code, indicating the category of the violation under the Road Traffic Law. Second digit: Demerit point classification code, indicating the category of demerit points for the traffic violation. Third and fourth digits: Sequential code, indicating the sequence of the violation within the same behavior classification. For example: 13035—"1" indicates a motor vehicle violation, the second digit "3" indicates 3 demerit points, and "035" indicates the fifth item under the third category of 3-point violations. Behavior classification code violation descriptions: Codes starting with "1" indicate motor vehicle violations, e.g., 1003. Codes starting with "2" indicate non-motor vehicle violations, e.g., 2002. Codes starting with "3" indicate pedestrian or passenger violations, e.g., 3030. Codes starting with "4" indicate highway violations, e.g., 4002. Codes starting with "5" indicate other regulations, e.g., 5005. Codes starting with "7" indicate implementation rules of provinces, autonomous regions, or municipalities, e.g., 7008. Codes starting with "8" indicate local regulations of cities (prefectures, autonomous prefectures, or leagues), e.g., 8606. There are four common ways to check motor vehicle violations: Visit the office halls of traffic police departments in various districts and counties to query via touch-screen terminals. Log in to the public service websites of municipal public security traffic management bureaus, find the vehicle violation query section, enter the license plate number and vehicle engine number, and click "Query." Call the hotline (area code + 114) for inquiries. Use the Traffic Management 12123 app (V2.8.1B437 for iOS 15+ or V2.8.1B274 for Android 12+), open the app, select "Messages," and click "Electronic Violation Records."

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What Causes a Car to Be Very Noisy?

What to Do When the Car's Three-Way Catalytic Converter Glows Red?

What Items Are Included in a Car's Fourth Maintenance?

How Often Should the Clutch Disc of an Automatic Transmission Car Be Replaced?

What is the purpose of the 1, 2, 3 gears in an automatic transmission?

Why is the front brake disc hot while the rear one is not?

What does the violation code 1353 mean?

Can I leave the car in P gear without pulling the handbrake?

What is the National Emission Standard for Vehicle V?

Can You Get a Driver's License with One Eye Blind?

Can people with myopia get a driver's license?