What is the Ignition System?

What Causes Idle Vibration After High-Speed Driving?

Here are the specific reasons for idle vibration after high-speed driving: 1. Shock absorber system malfunction: The shock absorber system is primarily responsible for filtering engine vibrations during operation. If there is an issue with the shock absorbers, these vibrations will directly transmit to the steering wheel and cabin, affecting driving. When the engine is idling, turning on electrical systems in the car can easily cause vibrations. The engine's load increases due to the activation of electrical systems, leading to a drop in idle speed. To compensate for the vibration caused by the idle speed drop, the engine will automatically increase its RPM. When electrical systems, especially the air conditioning, are turned on, the engine often experiences vibrations. This vibration is likely caused by aging shock absorbers and requires timely replacement. 2. Unstable oil pressure: If the engine carbon deposits have been cleaned, the throttle body has been washed, and the oil pads have been replaced, but the vehicle still vibrates, it is recommended to check the fuel supply pressure and the intake pressure sensor at a repair shop. Abnormal fuel pump supply pressure or incorrect values and improper operation of the intake pressure sensor can all cause vehicle vibration.

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What are the advantages of the Jetta sedan?

Here are the specific advantages of the Jetta sedan: 1. Economical, affordable, fuel-efficient, and highly reliable: Mid-range sedan equipped with high-end engine technology and safety features, adopting advanced multi-point fuel injection technology, all models equipped with three-way catalytic converters to enhance environmental performance. 2. Exterior design: Added chrome grille decoration, with fashionable models featuring 185/60R15 tires and 15-inch wheels. 3. Interior features: Standard equipment includes 6-way manual driver seat adjustment, headlight height adjustment, electric trunk opening, dual front airbags, anti-glare rearview mirror, and other basic configurations. 4. Powertrain: Available with 1.4L and 1.5L gasoline engines. The 1.4L engine delivers 66kW and 132N·m of power, while the 1.5L engine produces 80kW and 150N·m. These engines are paired with a 5MT and Aisin 6AT transmission respectively.

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What does the o/d-off warning light mean?

o/d-off warning light indicates that the overdrive of the car is in the off state. o/d is the overdrive. When the od switch is set to off, the transmission can only shift up to the 3rd gear, which means the 4th gear is restricted. Conversely, when the gear lever is in the D position and the o/d switch is set to on, the transmission can shift up to the 4th gear. The key role of o/d is to limit the gear of the transmission and prohibit the transmission from upshifting. This function can control the car's gear adjustment within the 1st, 2nd, and 3rd gears, while also limiting the engine speed, making it convenient for overtaking during driving. When the car needs to overtake, pressing the od button will instantly drop the transmission's gear to the 3rd gear, while the engine speed will rise, the torque will increase instantly, and the car's speed will also be greatly improved. Using this function can reduce unnecessary switching of the internal shift solenoid valve.

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Is it necessary to install mudguards on a sedan?

It is necessary to install mudguards on a car. Mudguards are plate-like structures installed behind the outer frame of the wheels, usually made of high-quality rubber or engineering plastic. Mudguards are typically metal, leather, plastic, or rubber panels mounted behind the wheels of bicycles or motor vehicles. Functions of mudguards: The primary purpose is to prevent mud from splashing onto the car body or people, which could make them look unattractive. They also help prevent mud from splashing onto tie rods or ball joints, which could cause premature rusting. Plastic mudguards, as the name suggests, are made of plastic. They are inexpensive, hard, and brittle. Painted mudguards are essentially plastic mudguards coated with paint. They are similar to plastic mudguards but blend seamlessly with the car's body color, making them more aesthetically pleasing. Rubber mudguards, also known as rubber splash guards, are used to block mud splashes when road vehicles (such as cars, tractors, and loaders) are in motion. They are usually made of pure rubber or a combination of rubber and plastic materials. They have good aging resistance and are commonly used behind the wheels of various vehicles.

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How is the three-cylinder engine of the Jiaji?

This three-cylinder engine used in the Geely Jiaji is the same as the one in the Lynk & Co 02. Nowadays, with advancements in manufacturing processes and the application of technologies like balance shafts, even a three-cylinder engine performs excellently in vibration suppression. Generally, the more cylinders an engine has, the higher the vehicle's class, as cylinder count corresponds to displacement. Below is an introduction to the Geely Jiaji: 1. Powertrain Configuration: Geely's first MPV, positioned as a high-end premium family MPV. Strictly speaking, the Geely Jiaji has three powertrain configurations: 1.5T three-cylinder engine + 6-speed manual transmission (MT), 1.5T three-cylinder engine + electric motor + 7-speed dual-clutch transmission (DCT), and 1.8T four-cylinder engine + 6-speed automatic transmission (AT). 2. Reasons for Using a Three-Cylinder Engine: There is a global consensus on energy conservation and emission reduction. On one hand, the Jiaji adopts a three-cylinder engine to follow the mainstream trend. On the other hand, the manufacturing and maintenance costs of a three-cylinder engine are lower. A three-cylinder engine has one less set of intake and exhaust components and piston connecting rod structures compared to a four-cylinder, resulting in significant cost advantages. Additionally, a three-cylinder engine offers benefits such as reduced component weight and lower heat dissipation.

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Can Vehicles Proceed When the Traffic Light Turns Green at a Congested Intersection?

At a congested intersection, vehicles are not allowed to enter the intersection even when the traffic light turns green. Below are specific driving tips for traffic congestion: 1. Following Technique: During traffic jams, try to slightly offset your vehicle to the left relative to the car in front. This provides sufficient preparation time for braking and starting, and maintain an appropriate distance. 2. Proper Braking: Drive at a steady speed in congested areas and always be ready to brake, but avoid keeping your right foot on the brake pedal for extended periods or too frequently. When braking, gently press the brake with the sole of your foot, which is quicker and more effective than using the toes. 3. Enter the Target Lane in Advance: In congested sections, especially at intersections, make sure to avoid lanes that cause traffic jams ahead of time. 4. Avoid Randomly Turning Off the Engine: To save fuel, drivers might turn off the engine while waiting, but this can lead to secondary brake failure. The braking system relies on the negative pressure generated by the engine to assist in braking. When the engine is off, only one braking opportunity is available.

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What is the Ignition System?

What Causes Idle Vibration After High-Speed Driving?

What are the advantages of the Jetta sedan?

What does the o/d-off warning light mean?

Is it necessary to install mudguards on a sedan?

How is the three-cylinder engine of the Jiaji?

Can Vehicles Proceed When the Traffic Light Turns Green at a Congested Intersection?

How long does it take to practice for the third subject before taking the test?

Why is the Wuling Hongguang S called the 'divine car'?

Correct Parking Procedure for Manual Transmission Cars?

Are pickup trucks exempt from tolls on highways during the Spring Festival?