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What Causes Car Jerking?

1 Answers
VanElijah
07/29/25 3:52pm
Car jerking during driving may be caused by the following reasons: 1. Engine or transmission malfunction: Especially for automatic transmissions, jerking frequently occurs in older vehicles during uphill driving or sudden acceleration. 2. Dirty throttle body: If the throttle body is dirty, it is recommended to clean it. 3. Abnormal throttle opening data: If abnormal, it may indicate a throttle assembly failure, and replacement is advised. 4. Excessive wear of spark plug electrode gap: Excessive gap wear leads to insufficient ignition, and ceramic part breakdown may cause spark plug misfire. If either of these spark plug conditions occurs, replacement is necessary.
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What are the reasons for the non-responsive heating of Volkswagen's rearview mirrors?

Volkswagen rearview mirror heating may not respond due to damaged heating film or faulty wiring. It should be inspected and repaired promptly. The rearview mirror is a tool that allows the driver to directly obtain external information about the rear, side, and lower parts of the car while seated in the driver's seat. Here are detailed introductions about car rearview mirrors: Overview: Car rearview mirrors are located on the left and right sides of the car's front and inside the car's front. The car rearview mirrors reflect the situation behind, to the side, and below the car, allowing the driver to indirectly see these areas, acting as a "second eye" to expand the driver's field of vision. Precautions: Car rearview mirrors are important safety components, and their mirrors, shape, and operation are carefully designed. The quality and installation of rearview mirrors have corresponding industry standards and cannot be altered arbitrarily.
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How to Match the Throttle of Nissan Qashqai?

Nissan Qashqai throttle matching method is: 1. Keep the engine off, turn the ignition switch to the ON position; 2. Wait for 3 seconds, then within 5 seconds quickly and fully press and release the accelerator pedal 5 times, wait for 7 seconds, do not move anything during this period, then fully press the accelerator pedal and hold it steady; 3. Observe the engine warning light on the dashboard, after about 10 seconds it will start flashing and then remain steadily lit, at this point release the accelerator pedal, the matching is complete. The dimensions of the Qashqai are 4315mm in length, 1783mm in width, and 1606mm in height, with a wheelbase of 2630mm. The interior configuration of the vehicle includes a 9-inch high-definition capacitive touchscreen and is equipped with the NissanConnect Nissan Intelligent Mobility system.
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What are the symptoms of a faulty Wuling B12 check valve?

The symptoms of a faulty Wuling B12 check valve are: excessive white or blue smoke from the exhaust pipe, accompanied by engine shaking and unstable idle. The maintenance methods for car engines are: 1. Regularly change the oil and oil filter; 2. Use lubricating oil of appropriate quality grade; 3. Regularly clean the radiator; 4. Regularly service the air filter, oil filter, and fuel filter; 5. Maintain good crankcase ventilation and clean it regularly; 6. Regularly clean the fuel system. The principles of engine operation are: 1. Mixing air and gasoline in a certain proportion to form a combustible mixture; 2. The intake stroke draws the mixture into the cylinder, where it is compressed, ignited, and burned to produce thermal energy; 3. The high-temperature and high-pressure gas acts on the top of the piston, driving the piston to perform reciprocating linear motion, which then outputs mechanical energy through the connecting rod, crankshaft, and flywheel mechanism.
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What are the reasons why the Enclave cannot perform one-touch window closing with the car key?

The reasons why the Enclave cannot perform one-touch window closing with the car key are: 1. The car battery is low on power; 2. There is an issue with the car's ignition system; 3. The car's steering wheel is locked; 4. The gear is not in the correct position. Taking the 2020 Enclave as an example, it belongs to the mid-to-large-size SUV category, with body dimensions of: length 4981mm, width 1953mm, height 1727mm, a wheelbase of 2863mm, a fuel tank capacity of 73 liters, and a curb weight of 1880kg. The 2020 Enclave features a MacPherson independent front suspension and a five-link independent rear suspension. It is equipped with a 2.0L turbocharged engine, delivering a maximum horsepower of 237PS, a maximum power of 174kW, and a maximum torque of 350Nm, paired with a 9-speed automatic transmission.
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What are the effects of damaged engine mounts?

The effects of damaged engine mounts include body vibration or jerky sensations during gear shifting. The function of the engine is to convert the thermal energy of gasoline into mechanical energy by burning the expanding gas in a sealed cylinder to push the piston and perform work. Methods for engine maintenance: 1. Use high-quality engine oil; 2. Use qualified coolant; 3. Regularly clean the radiator scale; 4. Regularly remove carbon deposits from the car; 5. Replace the car's air filter, oil filter, and fuel filter on time. The reasons for engine idle vibration are: 1. Damaged spark plugs, where the gap wear at the spark plug electrodes leads to insufficient spark ignition, resulting in incomplete combustion of the air-fuel mixture; 2. Poor quality gasoline, leading to poor atomization effect of the fuel injector and incomplete combustion of the mixture in the cylinder; 3. Dirty throttle body or excessive carbon deposits on the fuel injector; 4. Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor.
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How to Read Engine Oil Specifications?

Methods for reading engine oil specifications: 1. The smaller the number before 'W', the better the low-temperature fluidity and quality of the oil; 2. The larger the number after 'W', the better the high-temperature viscosity and oil quality; 3. For specifications like SA, SB, SC, SD, etc., the further the letter after 'S' is in the alphabet, the higher the oil grade and quality. Engine oil, also known as motor lubricant, is often referred to as the 'lifeblood' of a car. It serves multiple functions such as lubrication, cleaning, cooling, sealing, wear reduction, rust prevention, and corrosion protection for the engine. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of lubricants, determining their fundamental properties, while additives are used to compensate for and improve any deficiencies in the base oil's performance, as well as to impart new characteristics, making them an essential part of lubricants.
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