What are the common failure symptoms of oxygen sensors?

What is the difference between minor and major maintenance?

Differences between minor and major maintenance: 1. Minor maintenance refers to routine service items performed at the manufacturer's specified time and mileage intervals to ensure vehicle performance, including oil and oil filter replacement. Major maintenance refers to replacing the oil, oil filter, air filter, and fuel filter at the manufacturer's specified intervals. Major maintenance builds upon minor maintenance. 2. Minor maintenance is typically required every 5,000 kilometers, while major maintenance is needed every 20,000 kilometers. 3. Minor maintenance generally involves routine service items for vehicles with shorter driving distances to maintain performance, primarily including oil and oil filter replacement along with routine inspections. In contrast, major maintenance goes beyond minor maintenance by requiring replacement of the three filters and spark plugs in addition to oil changes. The three filters refer to the air filter, oil filter, and fuel filter.

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How Long Does a Car Battery Generally Last?

Under normal circumstances, a car battery typically lasts about two years. With proper maintenance, its lifespan can be extended, up to a maximum of four years. Precautions for using a car battery are as follows: 1. When starting the car, each attempt should not exceed 3 to 5 seconds, and the interval between subsequent attempts should be no less than 10 seconds. 2. Frequent short-distance driving with constant stops and starts can cause the battery to remain in a state of insufficient charge for prolonged periods, shortening its lifespan. Driving at a steady speed on the highway for 20-30 minutes allows the battery sufficient time to recharge. 3. During daily driving, before leaving the car, check and ensure all lights and other electrical appliances are turned off.

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Reasons for Battery Leakage?

Reasons for car battery leakage are as follows: 1. Cracks on the exterior: Battery leakage is often caused by aging or even cracking of the seal between the upper cover and the base. In this case, first inspect the battery's exterior for any cracks. If found, use plastic welding to repair them. After repair, also check the electrolyte concentration to ensure the battery functions properly. 2. Component leakage: It could also be due to leakage at the safety valve or wiring connections. First, remove the battery cover and check for any leakage marks on the safety valve. If present, the corresponding parts should be repaired or replaced.

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What are the symptoms of a faulty exhaust valve?

When the exhaust valve fails, it exhibits the following symptoms: 1. This can cause a large amount of white smoke to emit from the exhaust pipe, along with abnormal engine shaking and unstable idling. 2. It may also lead to an unusual phenomenon where the engine speed increases instead of decreasing during idling. 3. Additionally, carbon deposits can form in the combustion chamber, causing the piston rings to stick and resulting in poor sealing. 4. The failure might be due to aging, as the exhaust valve operates under high engine temperatures. Over time, it can deteriorate like the valve cover gasket or rubber seals, necessitating timely replacement.

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What is a Three-Way Catalytic Converter Made of?

The exterior of a three-way catalytic converter is constructed with double-layer stainless steel sheets formed into a cylindrical shape. Between the double-layer sheets, there is an insulating material—asbestos fiber felt. Inside, a purifying agent is placed within the mesh partitions. Below is relevant information about the three-way catalytic converter: 1. The three-way catalytic converter is the most important external purification device installed in a vehicle's exhaust system. 2. It converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. 3. It features stable performance, reliable quality, and a long lifespan, making it widely suitable for models from Toyota, Honda, Buick, Audi, Volkswagen, Hyundai, Suzuki, Changhe, and others. 4. The three-way catalytic converter is used to purify exhaust gases, reducing pollutants in the emissions, which benefits environmental protection. It is installed on the exhaust pipe of every vehicle.

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Can Antifreeze from Different Brands Be Mixed?

Antifreeze from different brands cannot be used together. The production formulas of antifreeze vary by brand, and mixing them may cause chemical reactions between the various additives, leading to their ineffectiveness. Antifreeze Replacement Cycle: Vehicle antifreeze generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference period. For commercial vehicles with higher mileage, the replacement cycle should be shorter. Since driving conditions vary for each vehicle, the replacement should be based on actual usage. Check the antifreeze's condition—if it is insufficient, replenish it promptly. If suspended particles, sediment, or signs of deterioration or discoloration are observed, replace the antifreeze and clean the system immediately. What Is Antifreeze? The full name of antifreeze should be antifreeze coolant, meaning a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head during cold winter parking.

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What are the common failure symptoms of oxygen sensors?

What is the difference between minor and major maintenance?

How Long Does a Car Battery Generally Last?

Reasons for Battery Leakage?

What are the symptoms of a faulty exhaust valve?

What is a Three-Way Catalytic Converter Made of?

Can Antifreeze from Different Brands Be Mixed?

When will Shanxi implement the China 6 emission standard?

How to Check if Your Vehicle Has an ETC Account?

How to Clean Dirty Seat Belts?

Reasons Why the Brake Pedal of an Automatic Transmission Car Won't Depress