What Causes the Starter to Not Respond When Turning the Key?

What are the issues if a gasoline car is filled with diesel engine oil?

Filling a gasoline car with diesel or diesel engine oil can cause difficulties in starting the vehicle. During driving, the exhaust pipe may emit smoke, and there is a high likelihood of damage to the catalytic converter. Below is an introduction to the related content: Although both gasoline and diesel engines are internal combustion engines, diesel has a lower auto-ignition point, around 220°, whereas gasoline has a much higher ignition point, between 410° and 430°. Therefore, diesel engines use compression ignition and do not require spark plugs for ignition. They rely on compressing air to raise the temperature to the diesel's ignition point, then inject diesel, which auto-ignites. Consequently, if diesel enters a gasoline engine, it will start burning violently on its own before the spark plug ignites, causing abnormal pressure in the combustion chamber, commonly known as knocking. This will also be accompanied by other engine abnormalities. Once it is discovered that the issue is caused by mistakenly adding diesel, it is crucial to stop attempting to start the engine to prevent diesel from entering the fuel system. Then, take the car to a 4S shop or repair shop to drain the diesel completely and refill it with gasoline.

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What are the causes of unstable idle speed caused by the carburetor?

The causes of unstable idle speed caused by the carburetor include: incorrect ignition timing, excessively lean or rich combustible mixture, improper contact gap of the circuit breaker, and excessively small spark plug electrode gap. Incorrect ignition timing: When ignition occurs too early, the negative work of compression increases, hindering the low-speed operation of the engine. If incorrect ignition timing is detected, first check the contact gap of the circuit breaker and adjust it to the specified range of 0.35-0.45 mm. Excessively lean or rich combustible mixture: When the combustible mixture is too lean, it can cause difficulty in starting the engine, carburetor backfire, unstable idle speed, reduced power, and unstable engine operation. When the combustible mixture is too rich, it can cause engine overheating, insufficient power, exhaust pipe popping, slow acceleration, and unstable idle speed. It is necessary to check and adjust the fuel level height in the carburetor float chamber. Improper contact gap of the circuit breaker: If the gap is too small, under low-speed operation, the resistance decreases relatively, resulting in weak or intermittent sparks, which cannot properly cut off the low-voltage current, thereby affecting the strength of the high-voltage spark, leading to misfiring at low speeds and causing unstable engine idle speed. When adjusting the contact gap of the circuit breaker, remove the distributor and distributor rotor, turn the crankshaft to fully open the contacts, loosen the fixing screw of the fixed contact, adjust the eccentric screw, and use a feeler gauge to measure the required gap, then tighten the fixing screw of the fixed contact. Excessively small spark plug electrode gap: If the electrode gap is too small, the arc energy increases, but because the flame kernel is close to the electrode, the flame-quenching effect is obvious, causing incomplete combustion of the mixture and resulting in unstable idle speed. Generally, the gap should be between 0.7 mm and 1.3 mm. If the gap is too small, it can be adjusted with a screwdriver; if the gap is too large, gently tap the side electrode with a small hammer. A spark plug gap gauge must be available.

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What Causes Piston Ring Noise?

Piston ring noise can be caused by: broken piston rings, piston ring leakage, poor sealing between the piston rings and cylinder walls, or piston rings hitting cylinder shoulders. Here are the detailed explanations: 1. Broken piston rings: Conduct a single-cylinder cut-off test. If the noise decreases but does not disappear, and a screwdriver placed on the spark plug or fuel injector produces a "pop, pop" sound, it can be confirmed as broken piston rings. 2. Piston ring leakage noise: When the engine is cold-started, a "bang, bang" sound is heard, and blue smoke is visible at the oil filler port, with the frequency matching the sound. During a cut-off test, if the noise disappears and smoke at the oil filler port reduces or stops, it can be confirmed as piston ring leakage noise in that cylinder. 3. Poor sealing between piston rings and cylinder walls: If noticeable blow-by noise persists after the engine warms up, and a cut-off test still shows significant leakage at the oil filler port, it can be confirmed as poor sealing between the piston rings and cylinder walls. 4. Piston rings hitting cylinder shoulders: Listen with a screwdriver pressed against the spark plug. If a "swish, swish, swish" sound is heard, it indicates broken piston rings. If noticeable vibration is felt, it indicates piston rings hitting cylinder shoulders.

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Where are the ETC service points?

ETC can be processed at highway toll stations, bank branches, and major internet platforms. ETC stands for Electronic-Toll-Collection, which means electronic toll collection system. To apply, you need to provide the original and photocopies of the vehicle owner's valid ID card and vehicle license. If the application is not made by the owner, the agent's valid ID card must also be provided. The photocopy of the vehicle license should include the page with the most recent annual inspection stamp. A bank card application form is required, and this credit card will be used to bind the ETC card. After receiving the credit card, swipe it twice and use the POS receipt to collect and install the ETC onboard device for free at designated service points. No fees are charged during this process. Applicants must be between 18 and 60 years old and own a vehicle in their name. Here are the precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a steeply inclined windshield, which reduces the driver's field of vision. If this is not considered during ETC installation, it can increase the driver's blind spots. Install it on the right side behind the rearview mirror to avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, avoid installing it on the blackened areas of the windshield or in positions where the solar panel might be blocked. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-tamper lever connected to a switch. After installation, the windshield will press the anti-tamper lever in. If the tag is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To avoid issues caused by the vehicle in front having a faulty ETC device, maintain a distance of at least 10 meters to prevent automatic payment for the vehicle ahead. The ETC lane recognition speed is 20 kilometers per hour. Driving too fast may prevent the system from reading the vehicle's device information, resulting in payment failure. If a debit card is used to bind the ETC, insufficient balance will also cause payment failure.

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What is ETC at highway toll stations?

Highway ETC (Electronic Toll Collection) translates to electronic toll collection, which is a non-stop toll collection system. Highways are equipped with one or more ETC lanes. ETC toll collection method: Through microwave-dedicated short-range communication between the on-board RFID tag installed on the vehicle's windshield and the microwave antenna in the ETC lane at the toll station, the system uses networked technology to conduct background settlement processing with the bank. This achieves the purpose of vehicles passing through bridge and road toll stations without stopping to pay toll fees. Banks install this type of ETC express card with a 'pass first, pay later' approach. ETC application requirements are as follows: Provide the original and photocopy of the vehicle owner's valid ID card and vehicle registration certificate. The photocopy of the driver's license must include the page with the most recent annual inspection stamp. Fill out a bank debit card application form, which will be used to bind the ETC card. After obtaining the card, you can go to a designated bank branch to receive and install the ETC on-board device for free, with no additional charges. Applicants must be between 18 and 60 years old and own a vehicle registered under their name. Documents required for company vehicles: An introduction letter from the vehicle owner (with official seal); photocopy of the organization code certificate or business license (with official seal); original and photocopy of the agent's ID card; original vehicle registration certificate; the vehicle that needs to apply for ETC. Precautions for installing ETC: Do not obstruct the driver's view. It is best to install it behind the rearview mirror: Many car models have a steeply angled windshield, which can reduce the driver's field of vision. If ETC installation does not consider this, it may increase blind spots. Install it on the right side behind the rearview mirror to avoid blocking the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement, as it has a solar panel on the back for self-charging. Therefore, during installation, avoid the blackened areas on the windshield and positions that may block the solar panel. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-tamper lever connected to a switch. After installation, the windshield will press the anti-tamper lever in. If removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This feature is designed to prevent multiple vehicles from sharing one device.

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What are the common car faults?

Common car faults and their solutions: 1. Red light on the dashboard: Generally refers to the brake and water temperature indicator lights. If the brake light suddenly turns on while driving, it could be due to worn brake pads, leaking brake fluid, or low brake fluid level. In this case, stop immediately and check, then seek nearby repairs instead of continuing long-distance driving. 2. Noticeably reduced braking effect: Often manifested as the car not stopping immediately after pressing the brake pedal, but continuing to move forward for a considerable distance before stopping. This might indicate a fault in the car's braking system, which is one of the most dangerous faults while driving and can easily lead to traffic accidents. Emergency measures should be taken, usually by checking if the brake pads are worn out, if the brake fluid has deteriorated, or if the tires are severely worn. 3. Steering wheel suddenly becomes heavy: If you suddenly notice significant resistance when turning the steering wheel while driving, and the wheel doesn’t return to its original position after turning, it could be due to a flat tire on one of the front wheels. For hydraulic power steering, it might be an issue with the power steering fluid; for electric power steering, it could be a blown fuse or a short circuit in the wiring. 4. Radiator leakage: The engine requires water circulation for cooling during operation, but if the radiator leaks, stop immediately. If the leak is at the bottom, it might be from the radiator or the windshield washer fluid reservoir, and you can continue driving cautiously. However, if the leaking fluid is yellow, green, or pink antifreeze, it indicates a radiator leak, and you must call for a tow truck. Do not drive until it’s repaired. 5. Vehicle feels unstable when turning: This is often caused by a fault in the front wheel alignment. Common causes include tire repairs that disrupt the balance of the front wheels, loose parts in the drive shaft, damaged overall balance, failed shock absorbers, worn or loose steering components, or improper front wheel alignment. Identify the specific cause before proceeding with repairs. 6. Smoke from the exhaust pipe: White smoke may indicate a dirty air filter causing insufficient air intake, or issues with the carburetor or oxygen sensor. Blue smoke, often accompanied by reduced acceleration and increased noise, might suggest internal engine faults like burning oil or scratches on the cylinder walls, requiring immediate repair to avoid significant damage. Black smoke usually points to problems with the ignition system, low cylinder pressure, or poor fuel quality. Try changing the fuel source first; if the issue persists, visit a repair shop. 7. Failure to start: If your newly purchased car frequently fails to start and the battery is always found dead after checks, don’t panic. Based on experience, batteries rarely drain on their own; it’s more likely due to habits like leaving the headlights on after exiting the car or listening to the audio system while the engine is off, which drains the battery.

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What Causes the Starter to Not Respond When Turning the Key?

What are the issues if a gasoline car is filled with diesel engine oil?

What are the causes of unstable idle speed caused by the carburetor?

What Causes Piston Ring Noise?

Where are the ETC service points?

What is ETC at highway toll stations?

What are the common car faults?

What is the emission standard of the Classic Focus?

How to Deal with Hard Braking?

How often should the spark plugs of Baojun 560 be replaced?

What gear should an automatic car be in when parked on a slope?