How to Pull Out a Sunken Parking Sensor?

Can a Car Charge Its Battery Without Running the Engine?

Can a car charge its battery without running the engine? Below are the reasons and precautions for charging a car battery without running the engine: Reasons why a car cannot charge its battery without running the engine: Because the alternator is connected to the engine via a belt, the alternator operates as long as the engine is running. After the car starts, the alternator begins to generate electricity to power the entire vehicle, including charging the battery. However, due to idling, the alternator's speed is relatively slow, resulting in limited electrical output. Precautions for charging a car battery without running the engine: It is important to note that although the car battery can be charged while idling, this method consumes fuel to some extent. Prolonged engine idling may also lead to carbon buildup in the engine. If the car battery is dead, it is best not to rely on idling for charging. If conditions permit, it is advisable to remove the car battery and charge it using a dedicated battery charger.

1

Share

Is Undercoating Necessary for New Cars?

Undercoating is necessary for new cars. The reasons for applying undercoating to new cars and the functions of a car's chassis are as follows: Reasons for applying undercoating to new cars: Undercoating is non-toxic, offers high coverage, and has strong adhesion. It can be sprayed on exposed areas of the vehicle such as the chassis, wheel hubs, fuel tank, lower body panels, and trunk. After quick drying, it forms a durable elastic protective layer that prevents damage from flying stones and gravel, protects against moisture, acid rain, and salt corrosion on the metal parts of the chassis, prevents rust and corrosion, and ensures the driving safety of the vehicle owner. Functions of a car's chassis: The car chassis consists of four parts: the transmission system, running gear, steering system, and braking system. The chassis supports and mounts the car engine and its components and assemblies, shapes the overall structure of the car, receives power from the engine to enable movement, and ensures normal driving.

6

3

Share

What is a Full Carbon Aero Kit?

Full carbon aero kits are vehicle kits entirely made of carbon fiber. Below are specific details about carbon fiber: 1. Definition: High-strength, high-modulus fibers with a carbon content exceeding 90%. They exhibit the highest heat resistance among all chemical fibers. Produced from acrylic and viscose fibers through high-temperature oxidation and carbonization, they are excellent materials for high-tech equipment such as aerospace. 2. Main Applications: Carbon fiber is primarily used as a reinforcing material combined with resins, metals, ceramics, and carbon to manufacture advanced composite materials. Carbon fiber-reinforced epoxy resin composites offer the highest specific strength and specific modulus among existing engineering materials. 3. Characteristics: A special fiber composed of carbon elements. It features properties such as high-temperature resistance, friction resistance, electrical conductivity, thermal conductivity, and corrosion resistance. The fiber is soft and can be processed into various fabrics. Due to the preferred orientation of graphite microcrystals along the fiber axis, it exhibits high strength and modulus in the fiber direction. Carbon fiber has low density, resulting in high specific strength and specific modulus.

19

2

Share

How Many Days is the Maintenance Period for Asphalt Pavement?

Asphalt concrete pavement surface does not require curing. Generally, traffic can be opened once the surface temperature drops below 60 degrees after compaction. Below is relevant information on asphalt pavement maintenance: 1. Maintenance precautions: While ensuring the original pavement structure standards, maintain the original structural strength. Asphalt pavement needs frequent removal of debris such as soil, stones, and gravel, especially at junctions with other types of pavement, where cleaning should be intensified. Mixing mortar or concrete on the pavement is prohibited to avoid contamination, which can lead to uneven surfaces or reduced skid resistance, adversely affecting traffic. 2. The optimal timing and cycle for preventive maintenance of municipal roads: The first stage is the initial usage phase after construction, during which the asphalt continuously oxidizes or wears over time; the second stage occurs after the asphalt road has been in use for some time, showing minor cracks or slight potholes; the third stage, building on the second, sees further development of defects leading to aggravated pavement damage, with large-scale cracks, even cracking and subsidence, rendering the road impassable for normal vehicle traffic.

8

3

Share

What is the normal tire pressure range for the Emgrand GS?

The normal tire pressure range for the Geely Emgrand GS is 2.4-2.5bar. Due to seasonal factors, the tire pressure can be appropriately increased by 0.2bar in winter and decreased by 0.1bar in summer. This data is based on the international GBT2978-2008 standard. The Geely Emgrand GS is equipped with an active tire pressure monitoring system (TPMS), which automatically monitors tire pressure while driving. However, it does not display the specific pressure or temperature values for each tire, only the TPMS warning symbol and the abnormal tire pressure warning symbol. When tire pressure is abnormal, the tire pressure warning light in the Emgrand GS will illuminate. Generally, a tire pressure above 2.8bar is considered too high, while a tire pressure below 2.0bar is considered too low. Hazards of overinflated tires: Reduced tire friction and adhesion, affecting braking performance; causing steering wheel vibration and deviation, reducing driving comfort; accelerating wear on the central tread pattern, shortening tire lifespan; increased body vibration, indirectly affecting the lifespan of other components; excessive stretching of tire cords, reducing tire elasticity and increasing the load on the vehicle while driving. Hazards of underinflated tires: Increased friction coefficient with the road surface, leading to higher fuel consumption; causing heavy steering and deviation, which are unfavorable for driving safety; increased movement of tire parts, leading to abnormal overheating due to excessive rolling; reduced functionality of cords and rubber, causing delamination or cord breakage and excessive friction with the rim, damaging the bead area and causing abnormal wear; multiplied friction between the tire and the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may lead to a tire blowout. If the tire pressure monitoring indicator light (a yellow symbol with an irregular circle, no stamp on top, four small spikes at the bottom, and an exclamation mark inside) illuminates, there are generally three possible reasons: Abnormal tire pressure: Typically, the system will alert if the pressure is below 1.8bar or above 3.0bar. In this case, tire inspection and pressure adjustment are necessary. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset in time, the system will still record the previous data, causing the tire pressure monitoring light to illuminate. Simply reset the tire pressure to resolve this issue. Damaged tire pressure sensor: The tire pressure sensor, which monitors tire pressure, is installed inside the tire and connected to the inflation valve. If the sensor is damaged due to impact while driving, the tire pressure warning light will illuminate. For sensor damage, the only solution is to replace it with a new part.

8

4

Share

Should You Use Internal or External Air Circulation When There's an Odor in the Car?

Use external air circulation. The differences between internal and external air circulation are as follows: 1. Different working principles: Internal circulation means the air inside the car is heated or cooled and then recirculated within the vehicle; external circulation involves drawing in outside air, heating or cooling it, and then sending it into the car, effectively exchanging air between the inside and outside of the vehicle. 2. Different usage methods: When turning on the air conditioning for cooling or heating, you can first activate internal circulation to quickly lower or raise the temperature inside the car. Once the temperature stabilizes, appropriately switch to external circulation to exchange air with the outside. If the outside air quality is poor, such as in heavy traffic with lots of exhaust fumes or in underground parking lots, avoid using external circulation. When driving on the highway, never open the windows; instead, use external circulation. If you feel stuffy inside the car when the outside air is good, switch to external circulation for ventilation.

11

4

Share

How to Pull Out a Sunken Parking Sensor?

Can a Car Charge Its Battery Without Running the Engine?

Is Undercoating Necessary for New Cars?

What is a Full Carbon Aero Kit?

How Many Days is the Maintenance Period for Asphalt Pavement?

What is the normal tire pressure range for the Emgrand GS?

Should You Use Internal or External Air Circulation When There's an Odor in the Car?

What procedures are required for vehicle modification?

Is the Toyota Land Cruiser domestically produced?

What Should Drivers Pay Attention to When Overtaking?

Do Manual Transmission Cars Have Paddle Shifters?