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What Causes Car Stuttering?

2 Answers

AubreeMarie

07/29/25 1:07am

Car stuttering during driving is mainly caused by the following reasons: 1. Fuel system supply issues: Air in fuel lines, blockages, fuel pump sticking, or injector nozzle clogging. 2. Air intake system problems: Caused by air filter blockage or turbocharger malfunction. 3. Electrical system failures: Due to low battery storage capacity. 4. Cooling system malfunctions: Caused by thermostat, coolant temperature sensor, or radiator fan failures. 5. Vehicle transmission system faults: Issues with clutch, gearbox, or drive shaft.

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DeAnthony

08/12/25 5:17am

Experienced drivers who have been driving for decades often encounter car stuttering, which is mostly due to issues with the ignition system or fuel system. For example, worn spark plugs can cause unstable ignition, or dirty fuel injectors can affect fuel supply. Clogged fuel lines or excessively dirty air filters can also cause the engine to malfunction, resulting in jerky movements. I experienced this while driving in the suburbs—my car was speeding up and slowing down intermittently, and it turned out to be heavy carbon buildup in the throttle body. Additionally, unbalanced tires or suspension problems can cause uneven wheel rotation, which translates into steering wheel vibrations. To address these issues, start by checking simple components yourself to avoid unnecessary trips to the repair shop and wasted money. Regular oil changes and good maintenance habits can prevent these troubles, ensuring your car runs smoothly and reliably.

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Can I still renew my driver's license normally if it has been expired for 7 months?

You can still renew your driver's license normally if it has been expired for 7 months. The renewal process is the same as the normal renewal process. The motor vehicle driver shall apply for renewal at the vehicle management office of the place where the motor vehicle driver's license was issued with the required materials. The vehicle management office will complete the renewal procedures within one working day after passing the review. In addition to applying for renewal at the vehicle management office, you can also apply for renewal in the following ways: Renewal through the "Traffic Management 12123" APP. Download the "Traffic Management 12123" APP, and then select Service Center -- Expired License Renewal Service -- Fill in the information. The new license is generally delivered by mail. Go to the "Police-Medical-Post" service point at the post office to apply for renewal. It only takes half an hour from registration, physical examination to the production of the new license. Currently, only a few cities have opened this service, such as Hangzhou.

What are the differences between the Mercedes-Benz V-Class and the Vito?

The differences between the Mercedes-Benz V-Class and the Vito: 1. Different body dimensions: The length, width, and height of the Mercedes-Benz V-Class are 5140mm, 1928mm, and 1880mm respectively, with a wheelbase of 3200mm; the Vito's length, width, and height are 5370mm, 1928mm, and 1880mm respectively, with a wheelbase of 3430mm. 2. Different levels: Although both vehicles are MPVs, the Mercedes-Benz V-Class is more upscale and luxurious than the Vito. 3. Different configurations: The Mercedes-Benz V-Class has more features than the Vito, including front and rear side airbags, front and rear head airbags, tire pressure monitoring, road traffic sign recognition, front and rear parking radar, rearview camera, automatic parking, electric tailgate, independent opening of the tailgate glass, bilateral electric sliding doors, color trip computer display, electric adjustment for the driver and front passenger seats, front seat heating, memory function for the driver and front passenger seats, second-row independent seats, GPS navigation, voice recognition control system, USB ports, steering assist, and other functions.

Can the Yamaha NVX155 be legally registered?

Currently, the Yamaha NVX155 cannot be registered in China. The only Yamaha big trade models available in China are the TMAX550 and R15, as the NVX155 has not been introduced yet, so it cannot be registered. Motorcycle registration process: Before registering, the owner should bring the invoice, certificate of conformity, and their ID card to the State Taxation Bureau to pay the vehicle purchase tax, and then go to an insurance company to purchase compulsory third-party liability insurance. The owner must bring the original and a copy of the purchaser's second-generation ID card, purchase invoice, vehicle purchase tax payment receipt, and the original certificate of compulsory third-party liability insurance to the vehicle management office of the Traffic Police Brigade of the Public Security Bureau to apply for registration. The Traffic Police Brigade will photograph and inspect the original certificate of conformity of the motorcycle and the engine and chassis number imprints. After approval, the motorcycle will be registered. Note: Newly purchased motorcycles must be listed in the current national vehicle product announcement to be eligible for registration.

Is it necessary to turn on the left turn signal every time when starting in Subject 3?

Yes, the turn signal should be activated. In Subject 3, when pulling over to park, the turn signal should be turned on immediately after hearing the voice command. Below is relevant information: Introduction: The driver's test is a qualification examination organized by the Vehicle Management Office of the Public Security Bureau. Only by passing the driver's test can one obtain a driver's license and legally operate a motor vehicle. Content: The examination for motor vehicle drivers is divided into the following subjects: the subject of road traffic safety laws, regulations, and related knowledge (also known as the 'theoretical test', referred to as 'Subject 1'), the subject of field driving skills (commonly known as 'pole test', referred to as 'Subject 2'), and the subject of road driving skills and safe and civilized driving knowledge (commonly known as the 'road test', referred to as 'Subject 3'). The examination content and passing standards are unified nationwide, with corresponding examination items specified according to different types of vehicles eligible for driving.

Is it necessary to change tires when changing rims?

Changing rims does not necessarily require changing tires. For modifications, you first need to determine the specifications of the modified tires, such as 205/55R16. Then, based on this specification, refer to the national standards to find the corresponding rim width that matches this specification. This will help you determine the appropriate rim size. Below is additional information: For example, for 195/65R15, according to the national standards, the compatible allowed widths are 51/2J and 61/2J, with a measured width of 6J. Therefore, the rim width options are: 51/2J*15, 61/2J*15, or 6J*15. For 225/65R15, according to the national standards, the compatible allowed widths are 6J and 7J, with a measured width of 61/2J. Therefore, the rim width options are: 6J*15, 7J*15, or 61/2J*15. From this, it can be concluded that if the original rim width is 51/2J*15 or 7J*15, they cannot be used interchangeably. Additionally, the rim offset must also be considered.

Do I need to pay for practicing driving at the test site for Subject 3?

If the candidate has already paid all the fees for the driver's license examination at the time of registration, then there is no need to spend extra money for practicing driving for Subject 3. Here is the relevant information: Subject 1: Road traffic safety laws, regulations, and related knowledge examination (Subject 1) written test, computer-based answers, 100 points is the full score, 90 points or above is a pass (including 90 points). Subject 2: Field driving skills examination (Subject 2) on-site, actual vehicle. Only pass or fail. Reversing into a garage, parallel parking, S-curve, right-angle turn, and hill start and stop, these five items are mandatory and conducted in sequence. 100 points is the full score, 80 points or above is a pass (including 80 points). Subject 3: Road driving skills examination (Subject 3) on the road or simulated site, actual vehicle. 100 points is the full score, 90 points or above for large buses, 80 points or above for large trucks, and 70 points or above for other vehicle types is a pass.

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