Does turning on the air conditioning immediately after getting in the car affect the vehicle?

What does a 1.5VVT engine mean?

A 1.5VVT engine means that the engine has a cylinder displacement of 1500cc. The 1.5 represents the displacement size of the vehicle's engine. VVT (Variable-Valve-Timing) is a variable valve timing system. This system adjusts the phase of the engine camshaft through its equipped control and execution system, allowing the timing of valve opening and closing to vary with engine speed, thereby improving air intake efficiency and increasing engine power. According to the working principle of an engine, during the intake stroke, the intake valve opens, and the piston moves downward to draw gas into the cylinder. When the piston reaches the bottom dead center, the intake valve closes, and the piston moves upward to begin the compression stroke. However, in actual design, the intake valve often closes after the piston passes the bottom dead center. There is a "lag time" for the intake valve closing. This mainly considers the inertia of the intake air; to allow more gas to enter the cylinder, the intake valve is appropriately delayed in closing. However, different engine speeds result in different intake airflow velocities, requiring corresponding adjustments to the intake valve closing timing to ensure optimal engine performance. Thus, the intake valve phase adjustment technology was born, abbreviated as VVT. If both the intake and exhaust valve phases are adjustable, it is called DVVT. For daily engine maintenance, the following methods can be used: Use lubricating oil of appropriate quality grade. For gasoline engines, SD--SF grade gasoline engine oil should be selected based on the additional devices of the intake and exhaust system and usage conditions; for diesel engines, CB--CD grade diesel engine oil should be selected based on mechanical load, with the selection standard not lower than the manufacturer's requirements. Regularly change the oil and filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, performance deteriorates, causing various problems for the engine. To avoid faults, oil should be changed regularly based on usage conditions, and the oil level should be kept moderate. When oil passes through the fine pores of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is clogged and oil cannot pass through the filter element, the filter element may burst or the safety valve may open, allowing oil to bypass through the bypass valve, bringing contaminants back to the lubrication area, accelerating engine wear and internal pollution. Regularly clean the crankcase. During engine operation, high-pressure unburned gas, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal powder from part wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, clogging the filter and oil holes, making engine lubrication difficult and causing wear. Regularly use a radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine's normal operation but also extends the overall lifespan of the radiator and engine.

14

0

Share

How to Turn Off the Parking Brake Light When It Stays On?

The methods to turn off the parking brake light when it stays on are as follows: 1. First, check if the parking brake is fully released. This is a common possibility—some drivers may forget to release the parking brake or fail to release it completely, causing the light to stay on. 2. If the parking brake is not the issue, but the light remains on, the driver should inspect the brake fluid. A leak or insufficient brake fluid level could trigger the parking brake light. 3. If the parking brake light stays on and is accompanied by brake shuddering or unusual noises, it may indicate worn brake discs or foreign objects lodged in the brake pads. In such cases, the driver should immediately take the car to a professional repair shop or a 4S dealership for servicing.

6

0

Share

What to Do When a Car Skids on a Muddy Road?

Solutions for a car skidding on a muddy road are as follows: 1. Use a jack. You can use the car's built-in jack to lift the vehicle, then place stones, bricks, branches, firewood, wooden boards, etc., in front of and behind the drive wheels, or wrap ropes around the drive wheels to increase the tires' grip, helping the car smoothly drive out of the mud pit. 2. Reduce tire pressure. Lowering the tire pressure makes the tires flatter, thereby increasing the friction between the tires and the ground. If only one side of the tires is skidding in the mud pit, the driver should gently pull the handbrake and increase the throttle. 3. Shape the mud pit into a slope. If you have tools at hand, you can shovel away the mud in front of and behind the wheels, shaping the mud pit into a slope. If there is water in the pit, try to remove it.

6

5

Share

Can I Add Water When Antifreeze Is Low?

In emergency situations or when the coolant level is slightly low, you can add purified water. What is antifreeze: The full name of antifreeze should be antifreeze coolant, meaning coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head when parking in cold winter. The role of antifreeze: Antifreeze is a type of coolant containing special additives, mainly used in liquid-cooled engine cooling systems. Antifreeze has excellent properties such as preventing freezing in winter, boiling in summer, and preventing scale and corrosion throughout the year. Composition of antifreeze: The main components of antifreeze are: fifty percent purified water, forty percent methanol, and ten percent other substances. Types of antifreeze: Antifreeze is generally divided into three types: ethanol-water type, glycerol-water type, and ethylene glycol-water type.

6

0

Share

What is the process for changing a vehicle's color?

The process for changing a vehicle's color is as follows: 1. Go to the vehicle inspection station to inspect the vehicle and pre-record information. 2. After queuing up and taking a number at the service hall, submit the required documents at the acceptance window. The main materials required include: "Motor Vehicle Change Registration/Record Application Form", the identity proof of the vehicle owner (for organizations, the organization code certificate) and its copy, the vehicle registration certificate, the driving license, a set of the vehicle frame number rubbing, the power of attorney for the organization and the identity proof of the agent and its copy, and the materials issued by the relevant department for vehicle body advertisements (if changing the usage nature, additional proof of vehicle usage nature issued by the relevant competent authority is required). 3. Pay the relevant fees at the payment window. 4. Collect the documents at the license and certificate window.

10

4

Share

What does 94V tire mean?

94V tire refers to a tire with a load index of 94V, where the maximum load capacity per tire is 670KG. The 'V' represents the speed rating of the tire, indicating the maximum speed at which the tire can carry a specified load under defined conditions. The maximum speed for 'V' is 240 kilometers per hour. Below is relevant information about car tires: 1. Car tires are one of the important components of a vehicle, directly in contact with the road surface. Together with the car suspension, they help absorb shocks encountered during driving, ensuring good ride comfort and smooth operation. They also ensure good adhesion between the wheels and the road surface, improve the vehicle's traction, braking, and off-road capability, and bear the weight of the car. 2. It is essential to regularly inspect tires, especially before driving on highways. Conduct thorough and detailed checks, including not only tire pressure but also observing for any cracks on the tire sidewalls and the wear condition of the tread. Any potential hazards should be addressed promptly.

19

3

Share

Does turning on the air conditioning immediately after getting in the car affect the vehicle?

What does a 1.5VVT engine mean?

How to Turn Off the Parking Brake Light When It Stays On?

What to Do When a Car Skids on a Muddy Road?

Can I Add Water When Antifreeze Is Low?

What is the process for changing a vehicle's color?

What does 94V tire mean?

What Causes Engine Misfire?

Will It Be Harmful If the Chassis Gets Scratched?

What is the Basic Structure of a Car?

Is it necessary to remove the halogen headlight shade?