How to Deal with Sticky and Aged Car Interior Panels?

Is the Engine Not Working Due to the Computer Board?

The engine not working is not necessarily due to the computer board. Check the spark plugs and cylinder wires: Ensure the spark plug gap meets the original factory technical standards, and the resistance value of the cylinder wires also complies with technical requirements. Adjust or replace them if they do not meet the specifications. Perform a fuel pressure system inspection: Check the fuel pressure gauge and fuel pressure gauge assembly, connect the fuel pipe and gauge. Start the engine and let it idle. The fuel gauge reading should be within the range of 270-320 kPa. If the pressure exceeds the technical specifications, replace the fuel pressure regulator and fuel filter. Inspect each cylinder's fuel injector: Let the engine idle, disconnect each fuel injector plug one by one, and observe if there is any change in idle speed. If disconnecting each injector results in a similar reduction in idle speed, the injectors are functioning normally. If disconnecting a particular injector does not affect the engine's idle speed or stability, measure the resistance of the injector plug. It should be between 10-13 ohms. Replace the injector if it does not meet the standard. Additionally, inspect the wiring between the PGM-FI main relay and the plug connection points, as well as any potential breaks or poor connections in the wiring between the plug connection points and the injectors. Fuel pump and fuel pump circuit inspection: For the fuel pump, remove the fuel tank cap and turn the ignition to the ON position. You should hear the fuel pump operating at the fuel filler opening. Under normal conditions, the fuel pump should run for 2 seconds when the ignition is turned ON. If the fuel pump does not operate, first check if the fuel pump fuse is blown. Also, verify the continuity between the PGM-FI main relay and the plug terminals, etc.

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How many kilometers should a motorcycle's belt be replaced?

The belt of a motorcycle should be replaced every 30,000 kilometers. Transmission system components: The belt of a scooter motorcycle is a part of the transmission system and does not affect it. If the motorcycle fails to start after replacing the belt, you can check whether other components were accidentally touched during the belt replacement, such as the wiring of the ignition system or the rubber hose of the carburetor. The connection with the crankshaft and a certain transmission ratio ensure the accuracy of the intake and exhaust timing. Since timing belts are rubber products with a limited service life, regular inspection of the engine timing belt is required depending on the car brand and model, and the need for replacement should be determined based on the inspection results. Regular replacement: Belts are rubber products, and prolonged use can lead to aging. Therefore, belts need to be replaced regularly. If the belt is not replaced for a long time, it may wear out and crack, posing a risk of breakage. If the belt suddenly breaks while riding, the motorcycle will instantly lose power, which is very dangerous.

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At What Battery Level Should a New Electric Vehicle Be Charged?

Regarding the question of how much remaining battery is appropriate for recharging new energy pure electric vehicles, Hydrogen Cloud Chain's research on relevant vehicle models' reports indicates that the optimal charging range is between 20% and 90%. Charging within this range can minimize the impact on the power battery and effectively extend its service life. Power Battery: As is well known, the current domestic power batteries are mainly ternary lithium and lithium iron phosphate. Ternary lithium batteries are most afraid of overcharging and over-discharging. Overcharging can lead to fires, while over-discharging (complete depletion) can cause the entire battery to fail. Low Battery Warning: To prevent new energy vehicles from discharging completely, some manufacturers set a low battery warning at around 15%. Of course, the vehicle is not immobilized at this point and still has a certain driving range left. If you continue to drive, the vehicle's speed will be limited. Even if you press the accelerator pedal all the way down, the vehicle's speed can only be maintained at around 40 km/h.

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Can Small Flatbed Trucks Drive on Highways?

Small flatbed trucks can drive on highways. Vehicles allowed on highways: Motor vehicles designed with a speed higher than 70 kilometers per hour are permitted to enter highways. In real life, each province has formulated additional regulations, measures, and other rules based on the actual conditions of their highways. For example, some provinces allow motorcycles on highways, while others do not. Vehicles not allowed on highways: Article 67 of the Traffic Safety Law: Pedestrians, non-motor vehicles, tractors, wheeled special-purpose machinery vehicles, articulated buses, full trailers, and other motor vehicles designed with a maximum speed lower than seventy kilometers per hour are not allowed to enter highways.

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What Causes the Noise When Stepping on the Brake and Turning the Steering Wheel in Place?

The noise is mainly caused by the friction between the tires and the ground, as well as noises from the brake discs, steering system, and suspension system. When turning the steering wheel in place, the steering wheels do not rotate around their geometric centers but rather roll slightly because the rotation center of the tire is not at its geometric center but at the rotation center of the steering knuckle. Therefore, from a microscopic perspective, the wheels perform a circular roll centered on the steering knuckle axis when turning in place. Noise occurs when turning the steering wheel in place: This phenomenon is more common in vehicles with mechanical hydraulic power steering (HPS), which is a mature and cost-effective technology. Mechanical hydraulic power steering converts part of the engine's power into hydraulic pump pressure, which then applies force to the steering system to turn the tires. When the steering wheel is kept straight, the pressure on both sides of the piston is equal. Once the steering wheel is turned, the mechanical control valve connected to the steering column opens. Tire squealing noise due to friction: When stepping on the brake and turning the steering wheel in place, the friction between the wheels and the ground produces a squealing noise. The increased force on the steering system can cause vibrations, resulting in a clunking sound. Although the suspension system is also under stress, it usually does not produce noise unless there are pre-existing issues, which might lead to cracking or creaking sounds. Of course, it's not entirely forbidden to step on the brake and turn the steering wheel in place, as there are situations, such as making tight turns in narrow spaces, where it is necessary. Therefore, it's not something to completely avoid—just minimize it when possible. If you must step on the brake and turn in place, avoid pressing it too hard; a light touch to restrict vehicle movement is sufficient.

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Can New Cars Have Paint Runs?

Generally, new cars should not exhibit paint runs. This phenomenon typically occurs only after repairs when the affected area has undergone bodywork and repainting, and the issue was not noticed during delivery or when the car's paint was not fully dried. Carefully inspect the vehicle when selecting: When choosing a car, pay attention to the details of the vehicle. The paint surface is the most basic inspection item. If there are burrs, runs, or color discrepancies, the next steps involve checking the engine compartment and assemblies. If there are obvious irregular welds, signs of removed or damaged rust-proof paint on screws and nuts, or color differences in the engine compartment, these cars are likely to be transport-repaired vehicles. Identifying whether a new car has been repainted: Examine the edges and seals. Look closely at the body's edge joints, seals, trim pieces, and rubber strips for any residual paint marks. If the car has been repainted, these areas will inevitably show traces. Pay special attention to the paint on the engine hood. If you notice that the paint's fullness is inferior to the original, or if there are signs of orange peel, runs, pinholes, bubbles, cracks, discoloration, or putty marks on the surface.

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How to Deal with Sticky and Aged Car Interior Panels?

Is the Engine Not Working Due to the Computer Board?

How many kilometers should a motorcycle's belt be replaced?

At What Battery Level Should a New Electric Vehicle Be Charged?

Can Small Flatbed Trucks Drive on Highways?

What Causes the Noise When Stepping on the Brake and Turning the Steering Wheel in Place?

Can New Cars Have Paint Runs?

What Are the Must-Have Items for Motorcycles?

What Causes High-Speed Shimmy in Small Cars?

What is the appropriate tire pressure for family sedans on highways?

What is the lifespan of a plug-in hybrid vehicle's battery?