What is the top speed of an electric car?

What is the warranty period for car batteries?

Car batteries generally have a one-year warranty period. The warranty duration is calculated from the date of vehicle purchase. Additional information: Below are precautions for battery maintenance: 1. Avoid long-term outdoor parking: Refrain from leaving the car parked in open-air parking lots for extended periods. If long-term parking is necessary, the battery must be removed and taken away to prevent freezing damage. 2. Engine starting: Car engines are harder to start in winter. Each starting attempt should not exceed 5 seconds, with intervals of no less than 15 seconds between attempts. If the engine fails to start after multiple attempts, check other aspects such as the electrical circuit, ignition coil, or fuel system. Avoid continuous starting attempts, as this may cause the battery to over-discharge and burn out. 3. Charging issues: Unused batteries will gradually self-discharge until they become unusable. Therefore, start the car periodically to recharge the battery. 4. Regularly inspect battery components and connections: Clean the battery terminals periodically and apply specialized grease to protect the wiring harness.

7

2

Share

How Many Years Are New 7-Seater Vehicles Exempt from Inspection?

New 7-seater vehicles are exempt from inspection for the first 6 years. Additional information: New regulations for 7-seater vehicle inspections in 2021: 1. Non-operational small and mini passenger vehicles with 7 to 9 seats are included in the exemption range within the first 6 years. 2. For non-operational small and mini passenger vehicles over 6 years but less than 10 years old, the inspection frequency is adjusted from once per year to once every two years. 3. The following four situations are not eligible for the inspection exemption policy: (1) Minivans; (2) Vehicles that have been legally penalized for illegal modifications; (3) Vehicles involved in accidents causing casualties; (4) Vehicles that have not completed registration procedures for more than 4 years since the date of manufacture are not eligible for the 6-year inspection exemption policy.

8

1

Share

Reasons for Car Body Shaking When Lightly Pressing the Accelerator

The reasons for car body shaking when lightly pressing the accelerator can be summarized into three points: 1. Fuel system issues: a. Most fuel system problems are caused by fuel line blockages, leading to poor fuel supply. Symptoms include engine shaking, unstable idling, and stalling while driving; b. Additionally, fuel pump malfunctions may also cause engine shaking. To diagnose fuel pump issues, disconnect the fuel line and check the flow rate and volume. 2. Electrical system issues: a. Check if the ignition timing is correct, as most ignition abnormalities are timing-related; b. Inspect whether the spark plugs have aged, if the gaps are consistent, and if there are any changes in the gaps; c. Furthermore, malfunctioning distributors may also cause engine shaking. 3. Mechanical reasons: a. Check the engine's operating condition for any abnormal sounds, such as valve noises; b. Inspect the belt's working condition for any looseness.

1

2

Share

What's the reason for the transmission not shifting up?

The possible causes for the failure to shift up: improper adjustment of the throttle cable or throttle position sensor; malfunction of the governor; severe leakage in the governor oil circuit; faulty speed sensor. Below is the relevant introduction: 1. Automatic transmission: As the name suggests, an automatic transmission does not require the driver to manually shift gears. The vehicle will automatically select the appropriate gear based on the driving speed and traffic conditions. Generally, automatic transmission vehicles have six gear positions, arranged from top to bottom as: P, R, N, D, S, L. 2. Transmission: A device that changes the speed ratio and direction of motion. Used in automobiles, tractors, ships, machine tools, and various machines to alter the torque, speed, and direction of motion transmitted from the driving shaft to the driven shaft under different working conditions. Gear-driven transmissions generally consist of a housing and several pairs of gears.

2

1

Share

Will insurance cover a windshield crack caused by a stone?

If the windshield damage to the car is not caused by a traffic accident, the insurance company will not compensate for it. The specific reasons are as follows: 1. According to Article 5 of the "Motor Vehicle Loss Insurance Terms", during the insurance period of this contract, if the insured vehicle is damaged due to an accident, the company shall bear the liability for compensation in accordance with the provisions of this contract. 2. According to Article 6 of the "Motor Vehicle Loss Insurance Terms", when an insurance accident occurs, the necessary and reasonable expenses incurred by the insured in rescuing and protecting the insured vehicle in accordance with the provisions of this contract shall be compensated by the company. 3. According to Article 7 of the "Motor Vehicle Loss Insurance Terms", the company shall not be liable for compensation for the part that should be compensated by other responsible parties of the accident in accordance with the provisions of the compulsory liability insurance contract for motor vehicle traffic accidents.

18

2

Share

What Are the Symptoms of a Faulty Camshaft Sensor?

The manifestations of a faulty camshaft sensor include difficulty in ignition, hard starting, unstable idle, inability to accelerate, weak engine performance, increased fuel consumption, vehicle shaking, persistent illumination of the malfunction indicator light, sudden engine shutdown when the car is hot, jerky driving, and accelerated engine wear. Below is an introduction to the camshaft position sensor: 1. Working Principle: The camshaft position sensor is the main control signal for ignition. When the sensor shaft rotates with the crankshaft and the camshaft, the light-transmitting holes and opaque sections on the signal disk pass between the LED and the phototransistor. The light emitted by the LED is alternately blocked and transmitted by the signal disk, thereby alternately illuminating the phototransistor of the signal generator. This generates pulse signals corresponding to the crankshaft and camshaft positions in the signal sensor. 2. Function: The camshaft position sensor collects the position signal of the camshaft and inputs it into the ECU, enabling the ECU to identify the top dead center of the cylinder compression for sequential fuel injection control, ignition timing control, and knock control. Additionally, the camshaft position signal is used to identify the first ignition timing during engine startup.

6

4

Share

What is the top speed of an electric car?

What is the warranty period for car batteries?

How Many Years Are New 7-Seater Vehicles Exempt from Inspection?

Reasons for Car Body Shaking When Lightly Pressing the Accelerator

What's the reason for the transmission not shifting up?

Will insurance cover a windshield crack caused by a stone?

What Are the Symptoms of a Faulty Camshaft Sensor?

Why Does the Motorcycle Make a Zizi Sound When Accelerating?

Why do driving schools have students learn manual transmission?

What is the standard for steering wheel free play?

What does BDC mean?