How to Use Car Cruise Control?

How to Distinguish the Valve Springs of the Axela?

Axela's intake valve uses short springs, while the exhaust valve uses long springs. The function of automobile valves is specifically responsible for introducing air into the engine and expelling the exhaust gases after combustion. Structurally, they are divided into intake valves and exhaust valves. The intake valve's role is to draw air into the engine to mix with fuel for combustion; the exhaust valve's role is to expel the burned exhaust gases and dissipate heat. Symptoms of damaged automobile valves are as follows: 1. Affecting the engine's working efficiency, resulting in reduced vehicle power; 2. Producing abnormal noises, the engine may experience unstable idling or poor acceleration during operation, with reduced overtaking performance. In severe cases, it may also lead to difficulty starting the engine, failure to ignite, and phenomena such as air leakage or increased carbon deposits in the vehicle; 3. Damaged valves can cause unstable cylinder operation, leading to engine shaking, lack of engine power, and may also result in blockage of the exhaust pipeline. In severe cases, it can cause the exhaust to emit black smoke.

3

0

Share

What is the working principle of the crankcase ventilation system?

The principle of crankcase ventilation is: when the engine piston moves upward, the gas pressure inside the crankcase is negative, at which time the ventilation pipe draws air from the outside. When the piston moves downward from the top dead center, the pressure inside the crankcase changes from negative to positive, and at this point, the crankcase ventilation pipe exhausts gas to the outside. The functions of the engine crankcase ventilation system are as follows: 1. Prevent lubricating oil from deteriorating and reduce corrosion of friction components. During engine operation, some combustible mixture and exhaust gases leak into the crankcase. The leaked gasoline vapor condenses, thinning the oil, degrading its performance, and reducing lubrication effectiveness. If the exhaust gases contain water vapor and sulfur, sulfuric acid can form, causing corrosion to the components. 2. Reduce pressure and temperature to prevent overheating. The gases leaking into the crankcase increase the pressure and temperature inside, causing oil to leak and deteriorate from seals and gaskets. Ventilation helps cool, reduce pressure, and prevent leaks in the oil. 3. Reduce atmospheric pollution and recover combustible gases, which helps improve fuel economy and reduce emission pollution.

2

0

Share

Does the Air Conditioner Evaporator Need Cleaning?

The air conditioner evaporator requires regular cleaning; otherwise, it can harbor many bacteria and accumulate dirt. Here is more information about car air conditioning: 1. The car air conditioner is a very important comfort feature in vehicles. 2. Cooling principle of car air conditioning: When the A/C button is pressed, the compressor clutch engages, and the engine drives the compressor to operate. The compressor continuously compresses the refrigerant and delivers it to the evaporator. Inside the evaporator, the refrigerant expands and absorbs heat, cooling the evaporator. The evaporator then cools the air blown by the blower, resulting in cold air from the vents. 3. Heating principle of car air conditioning: When the heating function is activated, the high-temperature coolant from the engine flows through the heater core, and the air blown by the blower also passes through the heater core, producing warm air from the vents. 4. The refrigerant used in car air conditioning is typically R134a, which needs to be replaced periodically. Failure to do so can lead to reduced cooling efficiency and slower cooling speeds. Refrigerant replacement should be done by professionals using specialized equipment, as it cannot be performed by car owners themselves. 5. The car air conditioning system requires regular cleaning and disinfection to prevent bacterial growth, which can affect the health of passengers.

4

0

Share

Where can I check the engine model?

The engine number is generally located on the outer surface of the engine cylinder block, or on the vehicle's nameplate, the nameplate inside the engine compartment. You can also check the engine number on the car purchase invoice; the factory certificate includes the engine number; the operating certificate of commercial vehicles contains the engine number; the vehicle purchase tax payment certificate has the engine number; the public security authority's registration records include the engine number; the vehicle insurance card lists the engine number; it can also be found below the windshield directly in front of the driver's seat. The simplest and most direct method is to look at the vehicle's administrative green book or the vehicle's driving license. The engine number is like a person's ID number, representing each vehicle. It contains very important information about the vehicle. The engine model is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and the engine's attributes, for a batch of identical products. It indicates information such as the manufacturer, specifications, performance, features, technology, purpose, and production batch of the engine, including fuel type, number of cylinders, displacement, and static braking power, etc. Engines installed in passenger cars or multi-purpose passenger vehicles are required to display the professional manufacturer's name, model, and production number. It's important to note that the engine number is not the same as the engine model. The engine model refers to the specifications and size of the engine within the manufacturer's lineup, and engine models can be the same. The engine number refers to the production number of the engine, where each engine can only have one unique number, and no two engines share the same number. Composition of the vehicle engine number: Front part: Includes the product series code, generation symbol, and regional or corporate code, which are selected by the manufacturer as needed and must be approved and filed by the industry standard's regulatory body. Middle part: Consists of symbols for the number of cylinders, cylinder arrangement type, stroke, and cylinder diameter. Rear part: Comprises symbols for structural features and usage characteristics. Tail part: Distinguishing symbol. When differentiation is needed within the same series due to improvements or other reasons, the manufacturer selects appropriate symbols to indicate this, and the rear and tail parts can be separated by a hyphen.

7

1

Share

What Causes the Water Faucet Light to Illuminate in a Car?

The water faucet light in a car is actually the engine malfunction indicator. When this light illuminates, it can be attributed to several possible causes: 1. Poor-quality gasoline that fails to meet standards: Substandard fuel can lead to incomplete combustion of the air-fuel mixture during engine operation, triggering the light. 2. Oxygen sensor malfunction: Damage to the oxygen sensor or its connector, or loosening of the connector, can result in an excessively lean or rich air-fuel mixture, causing the malfunction light to activate. 3. Faulty mass airflow sensor: While a malfunctioning mass airflow sensor may not prevent the engine from starting, it can lead to symptoms such as unstable idling, poor acceleration, backfiring in the intake manifold, and black smoke from the exhaust pipe. 4. Spark plug carbon buildup: Carbon deposits on spark plugs can cause poor engine performance, manifesting as difficulty starting, unstable idling, poor acceleration, backfiring during rapid acceleration, excessive exhaust emissions, and increased fuel consumption. 5. Engine knocking: This occurs when the air-fuel mixture ignites spontaneously before reaching the intended ignition point during the compression stroke, due to uncontrolled factors. The resulting shockwave opposes the piston's movement, causing engine vibration, known as knocking. Symptoms include reduced driving power, excessive engine noise, and, in severe cases, knocking sounds from the cylinders. 6. Damaged coolant temperature sensor: This can lead to abnormal engine operation.

5

Share

What are the legal provisions for third-party liability insurance?

Third-party liability insurance refers to the situation where an accident occurs while a qualified driver approved by the insured is using the insured vehicle, resulting in injury, death, or property damage to a third party. In such cases, the insurance company will provide compensation according to the relevant terms of the contract, thereby alleviating the financial burden on the insured. Below are the insurance provisions and situations where the insurer is not liable for compensation: Insurance Provisions: Article 17 of China's Road Traffic Safety Law stipulates: The state implements a compulsory third-party liability insurance system for motor vehicles and establishes a social assistance fund for road traffic accidents. Accordingly, all motor vehicles within China must purchase third-party liability insurance. Insurance institutions may handle matters related to the conclusion of motor vehicle insurance contracts at the offices of traffic management departments of public security authorities. Situations Where the Insurer is Not Liable for Compensation: Losses incurred due to an accident involving the insured vehicle, such as suspension of business, cessation of operation, power outage, water outage, gas outage, production halt, communication interruption, or other indirect losses. If the insured vehicle is damaged in an insured accident and loses its operational capability, the insurer is not liable for compensation for losses such as business suspension or inability to continue transportation during the period from damage to repair.

15

2

Share

How to Use Car Cruise Control?

How to Distinguish the Valve Springs of the Axela?

What is the working principle of the crankcase ventilation system?

Does the Air Conditioner Evaporator Need Cleaning?

Where can I check the engine model?

What Causes the Water Faucet Light to Illuminate in a Car?

What are the legal provisions for third-party liability insurance?

What is the Difference Between a Power Sunroof and a Panoramic Sunroof?

What kind of engine oil should be used for the 1.5T Ford Kuga?

The Difference Between Mineral Oil and Semi-Synthetic Oil

What is the shelf life of wiper blades?