What are the symptoms of a failed catalytic converter?

How to Solve Loud Car Engine Noise?

Solutions for loud car engine noise: 1. Poor fuel quality causing loud engine noise: When low-quality fuel is used, the combustion inside the engine deteriorates, leading to strong vibrations and noise during operation. The solution is to promptly switch to high-quality fuel. 2. Loose plastic parts in the engine compartment causing noise: If inspection confirms that the noise is coming from plastic components, tightening them can resolve the issue. 3. Loose engine mounts causing loud engine noise: Engines are typically supported and fixed by engine mounts, which can age and loosen over time, leading to noise during operation. Inspecting and tightening the engine's mounting components can alleviate the noise. 4. Loud engine noise during cold starts: When a vehicle has been parked for an extended period, all the lubricating oil flows back to the oil pan, preventing the engine from receiving adequate lubrication. This is a normal phenomenon.

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Does the ETC device require wiring?

There are two power supply methods for ETC devices. One is the solar-powered ETC electronic tag, which can automatically charge without wiring. The other is the ETC electronic tag that requires additional power supply (such as cigarette lighter power supply or battery power supply). The cigarette lighter power supply requires wiring, while the battery power supply does not require wiring. The battery has a validity period of 3 years, and a new battery can be replaced after 3 years. The wiring method for cigarette lighter power supply: 1. Take out the ETC device and stick it to the upper middle part of the front windshield with 3M adhesive; 2. Reserve 5 to 10 cm of the ETC device's power supply connection cable, and insert the cable into the gap of the top trim panel; 3. At the turning point, a plastic pry bar can be used to insert the connection cable, extending along the sealing strip all the way to the passenger foot space; 4. Lift the passenger foot mat and hide the connection cable under the mat; 5. Plug the connection cable into the cigarette lighter to obtain power, and the ETC installation is completed.

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What measures should be taken in case of brake failure?

After the brake system fails, you should downshift to use engine braking to slow down. If the speed still cannot be reduced, you can try to slow down by rubbing against the wall or railing on the side of the road. If this is necessary, ensure the safety of other pedestrians and vehicles. Do not use the handbrake in case of brake failure: If the brake system fails, do not use the handbrake, as this may directly cause the car to lose control. Composition of the brake system: The brake system is very important for a car. It mainly consists of a vacuum booster pump, master cylinder, wheel cylinder, brake pads, and brake discs.

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What Are the Reasons for a Car Not Starting in Cold Weather?

The reasons for a car not starting in cold weather: 1. Insufficient battery power: In low temperatures, the car's power consumption increases, and the battery capacity decreases. You can go to a specialized shop to recharge the battery or replace it with a new one in time; 2. Restricted oil flow: In winter, the viscosity of the engine oil increases, making it difficult to flow, which increases the engine resistance and makes it hard to start the car. You can place the car in a warm environment, and after a while, it can start normally. A complete solution requires professional winter maintenance and changing to the appropriate engine oil; 3. Frozen exhaust pipe, carbon buildup in the electronic throttle: The condition of a frozen exhaust pipe mainly occurs when the car is used infrequently. The water vapor from engine combustion freezes on the exhaust pipe, and short-distance driving is not enough to melt this ice. After one night, more ice forms, and over time, it will affect the vehicle's starting and exhaust. The solution is to drive at high speed to use stronger exhaust force to promptly remove the accumulated water in the exhaust pipe.

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Should a 2.0T engine use 92 or 95 octane gasoline?

It depends on the specific vehicle. Some joint-venture cars require 95 octane gasoline, while most domestic vehicles use 92 octane. The owner's manual usually specifies the recommended fuel grade, and manufacturers often place a reminder near the fuel filler cap. Introduction to gasoline octane ratings: This represents the ratio between the actual gasoline's anti-knock performance and that of standard gasoline. Higher octane numbers indicate stronger anti-knock properties. Composition of gasoline octane ratings: Standard gasoline consists of isooctane and n-heptane. Isooctane has good anti-knock properties with an octane rating of 100; n-heptane has poor anti-knock performance and is prone to engine knocking in gasoline engines, with an octane rating of 0.

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Has anyone been penalized for traffic violations with temporary license plates?

Temporary license plate violations also incur penalty points or fines. The validity period of a temporary license plate is no more than 15 days for use within the same district, and no more than 30 days for cross-district use. For other vehicle types, the period may be appropriately extended, but not exceeding 90 days. Introduction to temporary vehicle plates: Temporary vehicle plates refer to the temporary vehicle movement permits issued by the vehicle management department of the public security authorities for newly purchased vehicles before formal registration. They are a type of transitional license plate and have the same legal effect as formal license plates within their validity period. According to regulations: If temporary plates are not displayed, it is equivalent to not displaying motor vehicle plates, and 12 penalty points will be deducted.

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What are the symptoms of a failed catalytic converter?

How to Solve Loud Car Engine Noise?

Does the ETC device require wiring?

What measures should be taken in case of brake failure?

What Are the Reasons for a Car Not Starting in Cold Weather?

Should a 2.0T engine use 92 or 95 octane gasoline?

Has anyone been penalized for traffic violations with temporary license plates?

What to Do When the Lug Nut Is Too Tight to Loosen?

Where is the battery located in a Mercedes-Benz C200?

Where is the car fuse located?

Is it necessary to apply film on the front windshield of a sedan?