Is it okay to run the engine and use the air conditioning in the car?

What Causes Weak Acceleration and Dullness After an Oil Change?

Here are the specific reasons and solutions for experiencing weak acceleration and dullness after an oil change: 1. Incorrect oil quantity. When changing the oil, there is a specified standard. If too much oil is added, the crankshaft will require more effort to rotate, necessitating greater power to drive it, resulting in weak acceleration. Excessive oil may leak into the combustion chamber, leading to rapid oil consumption and engine carbon buildup, which can damage the engine. Insufficient oil means parts won't be adequately lubricated, reducing power. Use the dipstick to check the oil level and add oil until it reaches just above the midpoint. This ensures proper engine lubrication without excessive pressure on the crankshaft. 2. Oil and engine mismatch. Different engines require different oils. Weak acceleration after an oil change may indicate a mismatch. High viscosity makes crankshaft rotation difficult, while low viscosity means the engine isn't suited for that oil, causing noise. It's recommended to change the oil again, following the oil standards specified in the car manual. 3. Clogged oil filter or severe carbon buildup. The oil filter should usually be replaced during an oil change. If a clogged filter isn't replaced in time, oil will bypass through the relief valve, leading to reduced car power and increased engine wear.

18

5

Share

What is the normal air pressure for a truck?

Under normal circumstances, the air pressure gauge on a truck should read between 6-8 Bar. Here are specific considerations for adjusting truck tire pressure: 1. Special conditions: In deserts or muddy terrain, it's necessary to significantly reduce tire pressure, as this increases the tire's contact area with the ground, lowers pressure, and reduces the chance of getting stuck. 2. Frequent highway driving: To prevent the formation of standing waves in the tires, you can appropriately increase the tire pressure. 3. Winter and summer: Tire pressure can be slightly higher in winter and slightly lower in summer to prevent tire blowouts due to high temperatures. 4. Front tire pressure lower: Tire pressure is related to load. Due to different weight distributions of the vehicle body, the recommended tire pressure values for front tires, rear tires, half-load, and full-load will vary. Additionally, the front tires generally can have slightly lower pressure than the rear tires.

4

2

Share

What are the reasons why a car won't start?

Here are the specific reasons why a car won't start: 1. Carbon buildup in the car: Accompanied by slight shaking at idle, cleaning the throttle and fuel injectors can solve the problem. 2. Weak spark plug ignition energy: Not replacing the spark plugs after the maintenance cycle leads to a severe drop in ignition energy, causing misfires. 3. Insufficient fuel low pressure: Low oil pressure in the low-pressure fuel line directly causes the engine to require a second ignition. Specifically, check the fuel pressure regulator, fuel pump, fuel filter, and internal pipelines. 4. Dead battery: You need to jump-start the car using another vehicle or battery.

10

2

Share

Under what circumstances should automotive products be recalled?

When there are defects in a batch of automotive products, a recall is necessary. The term 'defect' refers to a situation where, due to design, manufacturing, labeling, or other reasons, there is a widespread non-compliance with national or industry standards for ensuring personal and property safety within the same batch, model, or category of automotive products, or any other unreasonable risk that endangers personal and property safety. Below are the methods and procedures for automotive recalls: Automotive recall methods: Recall methods are categorized into voluntary, mandatory, and a combination of voluntary and mandatory. Automotive recall implementation procedures: When implementing a recall, the manufacturer must develop a recall plan in accordance with the regulations of the State Council's product quality supervision department and carry out the recall according to the plan.

12

2

Share

Which company manufactures the T77 engine?

The T77 engine is independently developed by China's Bestune and is a domestically produced engine. The engine model of the T77 is CA4GA12TD, with a maximum power of 124kw, a maximum torque of 258 Nm, and a maximum horsepower of 169. For daily maintenance of the T77 engine, 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 in the intake and exhaust systems and usage conditions; for diesel engines, CB--CD grade diesel engine oil should be selected according to mechanical load, with the selection standard not lower than the manufacturer's specified 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, leading to various engine problems. To avoid malfunctions, oil should be changed regularly based on usage conditions, and the oil level should be 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, it may burst the filter element or open the safety valve, allowing oil to bypass through the bypass valve and carry contaminants back to the lubrication points, accelerating engine wear and increasing internal contamination. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, 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 particles from component wear to form sludge. In small amounts, it remains suspended in the oil; in large amounts, it precipitates from the oil, clogging filters and oil passages, 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 operates normally but also extends the overall lifespan of the radiator and engine.

17

2

Share

How to Identify Whether a Car Meets China 5 or China 6 Emission Standards

To identify whether a car meets China 5 or China 6 emission standards, you can check the following aspects: Relevant numbers in the emission standard section of the vehicle conformity certificate: According to relevant laws and regulations, dealers are required to provide a conformity certificate when selling a car. Without this certificate, the vehicle cannot be registered. The conformity certificate includes a section labeled "Emission Standard," which clearly indicates the emission standard code adopted by the vehicle. You don’t need to understand the preceding numbers; the key is whether it states "China V" (indicating China 5) or "China VI" (indicating China 6). Relevant numbers on the environmental information accompanying the vehicle: When purchasing a car, in addition to the conformity certificate, the accompanying documents include an environmental information list. Under the vehicle information section, there is a column labeled "Emission Stage," which will clearly specify whether the car meets China 5 or China 6 standards. Relevant numbers in the vehicle conformity certificate: Upon delivery, another document called the "Vehicle Conformity Certificate" is provided. It contains numerous verification items, including one labeled "Exhaust Emissions," which directly states the standard code used for the 3C certification. Here, "GB18352.5-2013" refers to the fifth-stage emission standard (China 5), while "GB18352.6-2016" refers to the sixth-stage emission standard (China 6). Numbers queried on the Motor Vehicle Environmental Protection Website: You can directly visit the Motor Vehicle Environmental Protection Website, click on the public query platform, and then enter the VIN (vehicle identification number) and the last six digits of the engine number to retrieve the vehicle’s information, including details that indicate whether it meets China 5 or China 6 standards.

20

0

Share

Is it okay to run the engine and use the air conditioning in the car?

What Causes Weak Acceleration and Dullness After an Oil Change?

What is the normal air pressure for a truck?

What are the reasons why a car won't start?

Under what circumstances should automotive products be recalled?

Which company manufactures the T77 engine?

How to Identify Whether a Car Meets China 5 or China 6 Emission Standards

What are the symptoms of a faulty transmission valve body?

What are the reasons why a car cannot start?

What are the effects of changing from 55 tires to 60 tires?

What are the differences in coolant colors?