How Long is the Driving Test Valid? How is the Time Calculated?

What are the main causes of difficulty in starting a hot engine?

The main causes of difficulty in starting a hot engine are: 1. Fuel injector dripping; 2. Engine carbon buildup; 3. Poor fuel quality; 4. Intake air temperature sensor issues; 5. Damaged carbon canister solenoid valve; 6. Spark plug failure; 7. Idle control valve malfunction; 8. Coolant temperature sensor failure. The coolant temperature sensor is a crucial sensor for the car's starting signal. If the coolant temperature sensor fails when the engine is hot, it cannot provide accurate feedback to the engine ECU. As a result, the engine ECU cannot determine whether the engine is cold or hot, leading to inaccurate fuel injection pulse width during startup.

20

5

Share

What is EPC on a car?

The EPC indicator light can illuminate in two states: during power-on self-test and under other circumstances. The power-on self-test is an indication that the vehicle is monitoring the status of all sensors before driving. Generally, if the engine is not started after power-on, the light will turn off by itself after about 3 seconds. In other cases, if the EPC light stays on or does not turn off for a long time after the vehicle starts, the main reasons for the EPC light staying on include faults in the engine intake system, throttle valve, fuel system, engine, ECU control unit, or brake lights. Below is a detailed introduction to the causes of the EPC light illuminating under other circumstances: Engine intake system fault: The EPC light will alert when the engine intake is obstructed or insufficient. Throttle valve fault: Carbon buildup is a common issue with the throttle valve. Additionally, dirt on the main body can affect intake, causing the indicator light to illuminate. Fuel system fault: Issues such as substandard fuel, fuel deterioration, or poor fuel atomization can trigger the light. Engine fault: Insufficient engine pressure or problems with the intake valve and other power system components can also cause the EPC light to illuminate. ECU control unit fault: For example, if the vehicle's computer signals are interfered with or the computer generates false alarms. Brake light fault: Situations like brake lights not working, brake switch failure, or brake circuit issues can trigger the EPC light. Solutions for when the car's EPC light illuminates: Troubleshoot intake system issues, use fuel with the appropriate octane rating, clean the throttle valve, etc. Remove carbon deposits from relevant parts. Re-flash ECU-related data. If the EPC light illuminates, the owner can first try turning off the engine and restarting it to see if the EPC light remains on. If it does not illuminate again, there may be no issue, possibly just the EPC light being affected. If the EPC light stays on or frequently illuminates, the vehicle should be taken to the nearest repair facility for professional diagnosis and troubleshooting to eliminate potential safety hazards promptly. The full English name of EPC is Electronic-Power-Control, which translates directly to electronic power control. Most people refer to it as the engine electronic stability system. The EPC system primarily includes controllers and sensors related to the power system. When sensor data in the system is abnormal, the EPC system will take predefined measures for the power system. Common EPC indicator lights are generally displayed in two colors: yellow and red. If the EPC fault light is yellow and the car can still operate normally, proceed slowly to a repair point for inspection. If the EPC fault light is red, the situation is more severe, and the vehicle should be pulled over immediately to contact relevant repair personnel. Continuing to drive under these conditions can directly affect the car's core components or driving safety.

12

3

Share

What is the method for car polishing?

Car polishing is done as follows: 1. Clean the entire car paint surface using specialized car washing foam until the surface is spotless; 2. Use coarse or fine wax with a polishing machine to remove imperfections on the paint surface; 3. After polishing, thoroughly clean all wax residue from the car paint; 4. Once the car is washed and the body is dry, apply car wax carefully over the entire vehicle. After the wax has been fully absorbed, wipe the body thoroughly. During car polishing, it's important to adjust the pressure according to different polishing areas to avoid grinding through the paint. Cover the windshield with a large towel to prevent wax from sticking to the wipers, which can be difficult to clean.

14

3

Share

How to Check Fuel Consumption in Classic Focus?

Here are the steps to check fuel consumption in Classic Focus: 1. Insert the car key and press the SET/RESET button on the turn signal lever with your left hand. 2. Turn the key from position 0 to position II and hold for a few seconds. 3. When the TEST message appears on the instrument cluster's trip computer display, it indicates successful entry into engineering mode. 4. Press the SET/RESET button to browse through the trip computer data. 5. When scrolling to the later sections, the RAFE item will be displayed, showing the average fuel consumption. The Focus is equipped with a Duratec-HE reverse-mounted aluminum alloy engine, featuring full aluminum casting and reverse-mounted design, delivering maximum power of 104kW and maximum torque of 180N·m.

5

2

Share

Where is the production location of Jetour vehicles?

Jetour vehicles are produced at Chery's intelligent manufacturing base in Kaifeng, Henan Province. Jetour is a sub-brand under Chery Automobile, primarily manufacturing SUV models, including the X70, X70S, and X90 series. All Jetour models feature a multi-link rear suspension design, which enhances both ride comfort and handling performance. Some Jetour models are equipped with an 8AT transmission. This 8-speed automatic transmission, sourced from Shengrui, represents the third-generation 8AT product, offering high transmission efficiency and smooth gear shifts. It can upshift to 8th gear at speeds of 100 km/h and helps reduce engine RPM during high-speed cruising.

10

0

Share

What are the differences between the T-Roc 230 and 280?

The differences between the T-Roc 230 and 280 are: 1. Different power: The T-Roc 230 engine has a maximum power of 131 horsepower and a peak torque of 225 Nm; the T-Roc 280 engine has a maximum power of 150 horsepower and a peak torque of 250 Nm. 2. Different configurations: The T-Roc 230 is a low-power version configuration; the T-Roc 280 is a high-power mid-range configuration. The T-Roc is an SUV tailored for young people by FAW-Volkswagen, based on a deep understanding of the Chinese SUV market and user needs. It adopts Volkswagen's new SUV design language and is a highly personalized SUV under the Volkswagen brand.

11

1

Share

How Long is the Driving Test Valid? How is the Time Calculated?

What are the main causes of difficulty in starting a hot engine?

What is EPC on a car?

What is the method for car polishing?

How to Check Fuel Consumption in Classic Focus?

Where is the production location of Jetour vehicles?

What are the differences between the T-Roc 230 and 280?

What is the fuel consumption of the Honda URV370?

What are the functions of the Civic steering wheel buttons?

Can ETC be attached to the black dot area of the glass?

What is the Function of the Traction Control System?