What Items Need to Be Replaced During the First Car Maintenance?

What is the problem with high shaking and vibration during cold idle?

Reasons for car body shaking during idle: 1. Severe engine carbon deposits: The most common cause of car shaking is dirty throttle or excessive carbon deposits in the fuel injectors. When the combustible mixture in the engine is sometimes lean and sometimes rich, it causes idle shaking after a cold start. 2. Ignition system problems: Check the working condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or spark plugs can also lead to such faults. 3. Unstable oil pressure: If you have already cleaned the engine carbon deposits, washed the throttle, and replaced the spark plugs but still notice body shaking during idle, it is recommended to check the fuel supply pressure and the intake pressure sensor. Abnormal fuel pump pressure or incorrect values and poor performance of the intake pressure sensor can cause body shaking. 4. Aging engine components: Car shaking is also related to the aging of engine mounts. Engine mounts are responsible for absorbing minor vibrations during engine operation. If there is a problem with the engine mounts, these vibrations will be transmitted to the steering wheel and the cabin, causing shaking during idle.

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Can a vehicle pass the annual inspection with traffic violations?

Vehicles with traffic violations cannot pass the annual inspection. Before applying for the motor vehicle safety technical inspection, the owner of the vehicle must settle all road traffic violations and accidents related to the vehicle. Additional information: 1. Regular safety technical inspection: Motor vehicles registered for road use must undergo regular safety technical inspections in accordance with laws and administrative regulations, based on factors such as vehicle purpose, passenger and cargo capacity, and service life. The motor vehicle safety technical inspection agency must conduct the inspection upon presentation of the vehicle's driving license and compulsory third-party liability insurance policy, and no additional conditions may be imposed by any unit. 2. Application for inspection qualification mark: The vehicle owner may apply for the inspection qualification mark at the vehicle management office of the registration location up to three months before the expiration of the current inspection period. Before applying, the vehicle owner must settle all road traffic violations and accidents related to the vehicle. When applying, the vehicle owner must fill out an application form and submit the driving license, compulsory motor vehicle traffic accident liability insurance certificate, and motor vehicle safety technical inspection qualification certificate.

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What is a car PCV valve?

PCV valve is a metering control valve. The PCV valve consists of a valve body, valve, valve cover, and spring, and cannot be disassembled. The PCV valve is installed between the engine crankcase ventilation system and the intake system, playing a crucial role in motor vehicles. If the PCV valve is damaged, the operation of the motor vehicle will be affected. The main function of the PCV valve is to direct gases from the crankcase into the intake manifold through the PCV valve, with a small amount of air entering the intake manifold directly from the air filter via the PCV valve. This helps prevent phenomena such as icing at the throttle and incomplete combustion, while also preventing blow-by gases from entering the atmosphere and avoiding oil deterioration. A damaged PCV valve can lead to white smoke from the exhaust pipe, accelerated wear, unstable idle speed, and in severe cases, engine idle shaking, weak acceleration, excessive oil consumption, and difficulty starting the car. The method to check the condition of the PCV valve is to clamp the hose between the PCV valve and the vacuum source while the engine is idling. If the engine speed drops by 50r per second or more, it is considered normal.

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Is Insurance Valid for a New Car Without License Plates?

Insurance purchased for a new car without license plates is valid, as there is no direct correlation between license plates and insurance validity. Below are some key considerations regarding vehicle registration: 1. Obtain the vehicle certificate: The vehicle certificate is crucial as it is a mandatory document for license plate registration. 2. Keep the triplicate car purchase invoice: After purchasing the car, the 4S dealership will issue a triplicate invoice, which must be retained as it will be needed for subsequent registration procedures. The invoice typically consists of red, yellow, and blue copies, with the red and yellow copies usually submitted and the yellow copy kept for personal records. 3. Pay the vehicle purchase tax and obtain the tax certificates: After purchasing the vehicle, it is important to promptly pay the vehicle purchase tax, which can generally be done at the nearest vehicle management office. Upon successful payment, you will receive the original and duplicate tax certificates, which should be kept safely.

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What happens if you press the clutch and accelerator at the same time?

Pressing the clutch and accelerator simultaneously for an extended period can cause certain wear to the clutch. Here is more information about the clutch: 1. Structure: The friction clutch is the most widely used type of clutch. Its structure typically consists of four parts: the driving section, driven section, pressing mechanism, and operating mechanism. 2. Working principle: It is generally divided into the engaged state and disengaged state of the clutch. The flywheel is fixed to the crankshaft, the pressure plate is fixed to the flywheel, and the clutch disc is sandwiched in between. Under normal conditions, the clutch disc is tightly pressed by the pressure plate, and as long as the engine is running, power is continuously transmitted to the gearbox (in neutral). When shifting gears, pressing the clutch causes the pressure plate to disengage, cutting off power transmission.

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What are the techniques for shifting gears in a manual transmission?

Here are the detailed techniques for shifting gears in a manual transmission: 1. Downshift after deceleration: Increase the speed before upshifting, and reduce the speed by releasing the throttle before downshifting. Always depress the clutch pedal fully before shifting, and operate the gearshift lever gently, quickly, smoothly, and accurately. 2. Master the timing of gear shifting: Shift gears when the engine speed is around 2000 RPM. First press the accelerator, then depress the clutch to prevent the clutch from being forcibly disengaged, and then shift. Downshift based on the vehicle's speed and condition, generally when the engine speed drops below around 1500 RPM. 3. Ensure smooth shifting movements: Depress the clutch fully in one motion, and engage the gear in one smooth action. Familiarize yourself with the gear positions. If you encounter difficulty engaging a gear, shift to neutral, release the clutch briefly, depress the clutch again, and then engage the gear.

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What Items Need to Be Replaced During the First Car Maintenance?

What is the problem with high shaking and vibration during cold idle?

Can a vehicle pass the annual inspection with traffic violations?

What is a car PCV valve?

Is Insurance Valid for a New Car Without License Plates?

What happens if you press the clutch and accelerator at the same time?

What are the techniques for shifting gears in a manual transmission?

What is the normal charging current for a car battery?

What are the penalties for motor vehicles driving in non-motorized lanes?

Why does a car's water temperature rise?

What is the Safe Following Distance Between Vehicles?