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What are the common faults in the ignition system?

1 Answers
Shawn
07/30/25 7:34am
Common faults in the ignition system include: difficulty starting, delayed ignition, and engine shaking when the vehicle is stationary. 1. Difficulty starting: Mainly manifests as trouble when starting the vehicle, with normal idle speed and normal acceleration in neutral gear. Occasionally, the vehicle may jerk when starting, and it's prone to stalling when starting on an uphill slope. 2. Delayed ignition: Characterized by heavy muffler noise, backfire in the carburetor during rapid acceleration, higher engine coolant temperature, and weak vehicle performance. 3. Engine shaking when the vehicle is stationary: Primarily occurs when the vehicle is stopped at traffic lights, causing the engine to shake. Increasing the engine speed can help stabilize the operation.
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What Causes the Constant 'Deng Deng Deng' Noise When the Car Reaches 40 MPH?

When the car reaches 40 MPH, there is a constant 'deng deng deng' noise, which is due to engine malfunction. Below are the detailed explanations: 1. Engine Noise: Engine noise indicates that the technical state of a certain engine component has changed. This is mainly caused by excessive wear of some parts or improper assembly and adjustment. Some noises can even predict potential catastrophic damage to the engine. Therefore, when the engine produces abnormal noises, it should be repaired promptly to prevent further damage. It is important to note that if the noise originates from inside the engine, most car owners cannot resolve it themselves, and it is best to send the vehicle to a professional repair shop. 2. Engine Classification: An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.
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What's the difference between 24v and 48v?

Taking lead-acid maintenance-free batteries for electric vehicles as an example, different voltages correspond to different numbers of batteries. The following are the differences between the two: 1. Voltage: The rated voltage of the former's pull-in coil is DC 48v, while the latter's is DC 24v. 2. Contact: The contacts of the former allow a current of 10A under 220v AC, the same as the latter under the same voltage, meaning the former's contact capacity is slightly larger than the latter's, at 2420VA. 3. Practical selection: Consider whether the contact capacity matches the actual needs and whether the control voltage matches the rated value of the relay's pull-in coil. If a 24v current is used to control a relay with a 48v pull-in coil, issues such as failure to pull in or insecure pull-in may occur.
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What is the infotainment system in the 2021 Volkswagen Bora?

2021 Volkswagen Bora infotainment system details are as follows: 1. Multimedia system: The top trim of the new Bora shares the same system with the new Lavida. The center console features an 8-inch multimedia system screen. Stylistically, both vehicles are quite similar. When the screen is turned off, it will still display information such as time. 2. Supports CarPlay and Baidu CarLife systems: The Volkswagen Bora supports both CarPlay and Baidu CarLife systems. In addition to conventional vehicle information and navigation displays, this system supports CarPlay and Baidu CarLife, which are essential practical configurations in today's era of widespread smartphone use. 3. Exterior design: The entire system operates smoothly with very quick transitions between programs and fast response speeds. The large screen is embedded in a black piano lacquer panel, giving it a highly designed appearance. Of course, the screen's fingerprint-collecting capability is also quite impressive.
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How to Solve Car Infotainment System Freezing?

Solutions for car infotainment system freezing are as follows: 1. Restart the car and the infotainment system. 2. Uninstall unnecessary software in the infotainment system. 3. Replace the faulty mainboard of the infotainment system. 4. Inspect and replace all connecting wires and ensure there are no loose connections. Additional information: Reasons for the infotainment system malfunctioning or freezing are as follows: 1. Short circuit in the power supply line causing malfunction or freezing. 2. Overload of the mainboard chip leading to system crash. 3. Poor quality of the mainboard chip causing freezing. 4. Exposed live wires in the power supply line touching the mainboard or components, or short circuits or loose and unstable connections.
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What are the reasons for a diesel engine suddenly stalling?

The reasons for a diesel engine suddenly stalling are as follows: 1. Poor operation of the low-pressure fuel system: Before stalling, the diesel engine's speed gradually decreases, but the engine sound remains normal, and the exhaust gas color shows no abnormalities, yet it can still lead to sudden stalling. 2. Presence of water in the diesel fuel: This may cause the diesel engine's speed to become unstable before stalling, with white smoke coming from the exhaust pipe, leading to sudden stalling during operation. 3. Damaged cylinder head gasket: If the diesel engine continues to emit white smoke and stalls or fails to start after removing water, the cylinder head gasket may need to be replaced before testing the engine again.
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How far can you drive with a flat tire?

Run-flat tires can still be driven for a certain distance after a puncture, while regular tires cannot continue to be driven. Below are some methods to prevent tire blowouts: 1. Regularly check tire conditions: Inspect tire pressure, observe if the tire sidewalls are cracked, and monitor tread wear. 2. Install a tire pressure monitoring system: The device will automatically alert you when tire pressure is abnormal, preventing blowouts. 3. Apply puncture-proof treatment to tires: Spray a protective film on the inner wall of the tire to prevent punctures and air leaks when encountering sharp objects. 4. Rotate tires periodically: This helps ensure even tire wear and avoids using tires of different models or with significant wear differences on the same axle. 5. Regularly correct wheel balance: Severe imbalance can cause high-frequency vibrations at high speeds, leading to uneven tire wear and compromising driving safety. After tire repairs, promptly perform balance checks and adjustments.
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