Why Are Second-hand BYD S6 Cars So Cheap?

What are the causes of clutch shudder?

Clutch shudder can be caused by the following reasons: Uneven distribution of normal pressure between the driving and driven discs: In a friction clutch, uneven spring tension of the pressure plate springs, inconsistent adjustment of the release levers, and/or uneven ends of the diaphragm spring fingers can lead to asynchronous engagement timing, uneven force distribution on the pressure plate, or even tilting of the pressure plate. This results in poor contact between the driving and driven discs, causing clutch shudder. Weakened damping spring tension: Weakened tension of the clutch torsional damping springs, reduced tension of the clutch pressure plate springs, or cracks in the diaphragm spring can all cause shudder during clutch engagement.

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What does the ABS warning light mean?

There are various conditions when the ABS light is on, with different causes and solutions for each condition, as detailed below: Condition 1: ABS warning light stays on (most common). Cause 1: The ABS wheel speed sensor's sensing part is covered by mud, sludge, or other contaminants, affecting its ability to detect the corresponding speed signal. This prevents the ABS control unit from determining the vehicle speed or wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the wheel speed sensor and adjust the gap between the sensor and the tone ring to restore normal function. Cause 2: Poor signal due to loose system wiring connections or poor contact in the ABS relay, leading to system malfunction. Solution: Inspect wiring connections and reconnect any loose parts. Condition 2: ABS warning light intermittently illuminates but turns off during acceleration. Cause: When multiple electrical devices are in use, battery voltage drops below 10.5V. As engine speed increases, voltage rises, and the ABS light turns off. This may also occur due to low system supply voltage, such as poor terminal contact or grounding issues. Solution: Check battery specific gravity; inspect the charging system; verify power supply (e.g., voltage relay or poor power contact). Condition 3: ABS warning light stays on after engine start but turns off when the engine is turned off (IGFF). Cause: Poor grounding contact in the ABS hydraulic valve body; poor contact in the ABS hydraulic valve body wiring connector; ABS control unit failure. Solution: Loosen and retighten the hydraulic valve body ground screw, cleaning the contact surface if necessary; check for enlarged connector gaps; replace the ABS or ABS/ASR control unit. Condition 4: ABS warning light illuminates during high-speed driving. Cause: The ABS control unit detects a significant discrepancy between rear and front wheel speeds; incorrect tire or wheel rim specifications. Solution: Refer to the vehicle's tire and wheel rim specifications, typically found on the label near the fuel filler cap. Condition 5: ABS warning light intermittently illuminates. Cause: Improperly adjusted brake light switch; poor internal contact in the brake light. Solution: With the engine running, press the brake pedal and push the brake switch linkage down fully with your finger, then release the pedal to complete self-positioning; replace the brake light switch if necessary. If the ABS warning light is on, it is recommended not to continue driving. An illuminated ABS light indicates a malfunction in the anti-lock braking system. During emergency braking, locked wheels may cause the vehicle to skid uncontrollably, preventing the driver from slowing down or adjusting the vehicle's path, posing significant safety risks.

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What is the minimum speed for fourth gear?

For manual transmission vehicles, the minimum speed for fourth gear is 40km/h. Below is a related introduction about vehicle gears: Speed aspects: First gear corresponds to a speed of 0-5km/h, second gear to 5-20km/h, third gear to 20-40km/h, fourth gear to 40-60km/h, and fifth gear to 60-100km/h. Shifting timing: The general shifting timing for most vehicles is when the engine reaches 2000r/min, and should not exceed 2500r/min. For some high-displacement, high-power engines, shifting can occur around 3000r/min.

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What are the symptoms of a faulty fuel pump in a car?

When a car's fuel pump is damaged, the engine typically exhibits symptoms such as sluggish acceleration and abnormal noises. Below are detailed descriptions of the car's condition when the fuel pump is faulty: Sluggish Acceleration: There is a jerking sensation during sudden acceleration; the car is difficult to start and requires prolonged turning of the key. Abnormal Engine Noises: Unusual noises occur while driving; the engine shakes, and the engine warning light comes on. Fueling Precautions: When refueling the car, avoid waiting until the fuel warning light comes on, as this can shorten the fuel pump's lifespan. The fuel pump is a critical component of the car's fuel supply system: If the fuel pump fails while the car is in motion, it can directly cause the vehicle to become immobile, operate poorly, or exhibit symptoms like labored acceleration.

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What Damage Can Hail Cause to Cars?

Hail falling from high altitude carries significant kinetic energy and can be quite destructive. Even ordinary-sized hail can damage vehicles, causing harm to windshields and paint surfaces, with the extent of damage depending on the size of the hailstones. Below is a detailed introduction to the hazards hail poses to cars: When hailstones are relatively small: For example, the size of soybeans, the impact is minimal and typically does not cause damage to the car. Vehicles have a certain level of impact resistance, and in most cases, they remain unharmed unless the car body or glass quality is poor. When hailstones are larger: Such as the size of a one-yuan coin, some as big as eggs, or even tennis balls, these heavier hailstones can smash cars, leading to shattered glass, dents, and other body damage. Precautions during hailstorms: Try to park the car in a sheltered area, preferably in an underground parking lot. If the car must remain outdoors, covering it with a thick blanket can help minimize damage. When caught in a hailstorm with no place to take shelter, quickly move to the back seats of the car to avoid injury from potential windshield shattering.

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What documents should the 4S store provide when picking up the car?

The materials provided by the 4S store when picking up the car include: purchase invoice, vehicle certificate of conformity, vehicle registration certificate, warranty certificate, vehicle user manual, new vehicle delivery confirmation form, etc. If the 4S store is responsible for license plate registration and insurance, you will also need to obtain the original insurance policy, insurance invoice, compulsory traffic insurance invoice, vehicle and vessel tax invoice, purchase tax invoice, tax payment certificate, and compulsory traffic insurance label from the salesperson. If any of the above documents are missing, you should promptly request them from the 4S store. Below are some precautions to consider when picking up the car: Check the appearance: Park the vehicle in an outdoor area with sufficient light, observe the body paint, and ensure there are no scratches or wear, the paint is even, and the paint appears clear under sunlight reflection. Check the nameplate: Open the door, the vehicle nameplate is located near the driver's door side or B-pillar, check the relevant information on the nameplate. Open the engine compartment: Open the engine compartment, check if it is clean and free of dirt, and ensure the engine oil and other fluids are at adequate levels. Check vehicle functions: Manually check if the doors open and close smoothly, if the windows roll up and down properly, if there is any strong odor inside the car, if the air conditioning cools, if the wipers function normally, and if the lights turn on correctly.

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Why Are Second-hand BYD S6 Cars So Cheap?

What are the causes of clutch shudder?

What does the ABS warning light mean?

What is the minimum speed for fourth gear?

What are the symptoms of a faulty fuel pump in a car?

What Damage Can Hail Cause to Cars?

What documents should the 4S store provide when picking up the car?

What does 'ch' mean on the dashboard?

What is the difference between natural cracking and human-induced cracking of car glass?

How to Check Driver's License Status?

What are the four basic components of a friction plate clutch?