What should be paid attention to for passing Subject 2 at one time?

What are the components of a car's starting system?

The starting system of a car is generally composed of the car battery, ignition switch, starting relay, starter motor, and fuses. The introduction to the car's starting system is as follows: 1. The main function of the car's starting system is to convert the electrical energy from the battery into mechanical energy to start the vehicle. 2. The starter motor is primarily activated by external force. Currently, most starter motors on the market are electric starter motors, which are characterized by easy operation and relatively fast starting speed. 3. The starter motor generally requires sufficient torque because it needs to overcome the resistance from the engine to drive its operation. Therefore, the torque of the starter motor is one of the important criteria for judging its quality.

6

2

Share

What does it mean when a car burns oil?

Burning oil means the car consumes more oil than usual compared to vehicles of the same price range and series. Below is relevant information about oil burning in cars: Causes of oil burning: 1. Poor fuel quality leads to carbon buildup, causing piston rings to get stuck by carbon deposits, preventing them from scraping oil and leaving oil in the cylinder. 2. Clogged oil return passages prevent oil from properly returning to the crankcase. 3. Excessive wear between cylinder walls and pistons, resulting in excessive clearance. 4. Corrosion and aging of valve stem seals and crankshaft seals, leading to oil leakage. 5. The most obvious symptom of oil burning is blue smoke from the exhaust pipe, along with significantly increased oil consumption, requiring frequent oil top-ups in short intervals. Oil burning in vehicles can lead to increased carbon deposits in the combustion chamber, reduced fuel economy and power performance, and excessive exhaust emissions.

20

3

Share

Is Vehicle Annual Inspection Closed on Holidays?

Normal working hours apply, as the vehicle management office operates 365 days a year without closure. On weekends and holidays, basic services such as temporary license plates and license plate replacements can be processed, but vehicle registration services are not available. Vehicle Annual Inspection Period: The vehicle annual inspection period is calculated from the date of vehicle registration. The next inspection date will be clearly noted on the supplementary page of the driving license. Inspection applications can be submitted up to 3 months before the annual inspection date. Additionally, the 6-year exemption for new vehicles does not mean exemption from annual inspection. It refers to the exemption from the step of taking the vehicle to the inspection station for line testing, which is only one part of the annual inspection process. Owners still need to apply for the inspection mark every two years. Precautions Before Vehicle Annual Inspection: Before the annual inspection, it is necessary to ensure that all vehicle violation records have been processed. Vehicle modifications are not allowed. A copy of the insurance policy must be submitted during the inspection, and the copy will be retained by the inspection agency. Additionally, you need to bring the driving license, compulsory traffic accident liability insurance policy (copy), the inspector's ID card, a triangular warning sign, and a fire extinguisher. It is worth noting that if the owner is too busy to handle the annual inspection in person and needs someone else to do it on their behalf, the owner's ID card is not required. The person handling the annual inspection only needs to provide their own ID card.

6

0

Share

Should You Press the Clutch and Brake When Starting the Engine?

Starting the engine requires pressing the clutch and brake. Relevant explanations are as follows: 1. Pressing the clutch when starting the car is for safety reasons. 2. Pressing the clutch can prolong the engine's lifespan. 3. If you don't press the clutch, although the engine can still start, it will increase the burden on the starter motor and amplify the current output from the battery, thereby affecting the engine's ignition performance. Things to note when driving a manual transmission car: 1. Do not press the clutch pedal when not shifting gears. 2. Finding the clutch engagement point is crucial when driving a manual car. When approaching the engagement point, release the clutch slowly while pressing the accelerator. 3. Coordinating the accelerator and clutch while driving should be adjusted according to the vehicle speed, as the driver's reaction time decreases inversely with increasing speed.

8

3

Share

Should You Press the Clutch When Decelerating in a Manual Transmission Car?

When decelerating at higher speeds, you should first apply the brakes and then press the clutch once the speed has decreased. This is known as the "dual braking" method. At lower speeds, you should press the clutch first before applying the brakes; otherwise, the engine may vibrate and stall if the clutch is not engaged. Lower speeds refer to when the vehicle is traveling below 30 km/h or when the engine RPM is around 900. In such cases, it is advisable to press the clutch first and then apply the brakes. This operation is most commonly used at traffic lights in urban areas. Since the engine RPM is low and the wheel speed is not high, there is minimal inertia. A light press on the brake pedal is sufficient to stop the vehicle. Pressing the clutch beforehand prevents the car from stalling and disconnects the engine from the transmission, stopping the engine from providing power. The vehicle's weight alone can counteract most of the inertia. This approach has two advantages: first, you don’t have to worry about the car stalling, as long as you control the brake pedal properly; second, the car will come to a smoother stop without any sudden jerking. When braking at higher speeds, release the accelerator first, then apply the brakes, and finally press the clutch. This is because the vehicle has greater inertia at higher speeds. Releasing the accelerator and applying the brakes reduces the engine RPM, which helps suppress the wheel speed. Applying the brakes at this stage, combined with the braking effect of the brake pads, yields better results. If you press the clutch first and then the brakes, the engine's traction is cut off, leaving only the brake pads to provide braking force. Braking Tips for Manual Transmission Cars: Braking in Rainy Conditions Use emergency brakes cautiously in rainy weather and try to control your speed. For roads with standing water, use intermittent braking. This helps remove some water from the brake discs and prevents rust! Avoid Continuous Braking When approaching a red light, don’t brake hard just before stopping. Instead, brake gradually and adjust based on the distance to maintain a controlled speed. This is the most economical and scientific approach. Braking on Slopes When braking uphill, the vehicle decelerates quickly. Therefore, on slopes, brake as usual but release the brake faster than normal. This prevents the car from rolling backward or causing a rear-end collision. For manual transmission cars, remember to shift gears promptly after braking and avoid using high gears when climbing. When descending a slope, use the brakes as an auxiliary tool for deceleration rather than applying them continuously. Continuous braking may overheat the brake pads and lead to brake failure. Generally, using third gear in a manual transmission helps maintain a stable speed. The brakes should only assist in controlling speed, and it’s best not to rely solely on them for speed regulation.

1

2

Share

Where to Maintain a Parallel Imported Vehicle?

Parallel imported vehicles should be maintained at the brand's authorized service centers. Below is relevant information about parallel imported vehicles: 1. Parallel imported vehicles come with warranties, which are provided by third-party contractors. 2. Vehicles sold in free trade zones require customers to purchase whole-vehicle warranty insurance. 3. Whole-vehicle warranty insurance is divided into two types: major component warranty and whole-vehicle warranty. The major component warranty primarily covers insurance for the vehicle's key parts. 4. The replacement warranty is valid for two years or 50,000 kilometers (whichever comes first), while the warranty for wear-and-tear parts lasts for one month or 2,000 kilometers (whichever comes first). Therefore, as long as the vehicle is purchased from a legitimate parallel importer, the dealer must provide warranty services.

1

2

Share

What should be paid attention to for passing Subject 2 at one time?

What are the components of a car's starting system?

What does it mean when a car burns oil?

Is Vehicle Annual Inspection Closed on Holidays?

Should You Press the Clutch and Brake When Starting the Engine?

Should You Press the Clutch When Decelerating in a Manual Transmission Car?

Where to Maintain a Parallel Imported Vehicle?

Can the Crack on the Windshield Be Repaired?

Where is my motor vehicle QR code?

What is the speed limit on Huachang Expressway?

What are the symptoms of aging in automotive ignition coils?