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What Causes Abnormal Noises in a Car?

1 Answers
DelAmara
07/25/25 11:24am
Abnormal noises during car driving can be caused by inaccurate four-wheel alignment or damaged wheel bearings. Below are detailed explanations of the reasons for abnormal noises during car operation: 1. Inaccurate four-wheel alignment: When a vehicle's four-wheel alignment is inaccurate, it causes significant tire wear during driving, leading to uneven tire wear and resulting in abnormal noises. 2. Damaged wheel bearings: Abnormal noises occur when a vehicle's wheel bearing is damaged. Long-distance driving places high demands on wheel bearings. Bearings of poor quality or those that have been used for an extended period may fail due to fatigue under prolonged high-speed operation, producing abnormal noises.
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Does BYD's battery warranty cover undercarriage impacts?

BYD's battery warranty does cover undercarriage impacts. BYD's battery warranty policy is as follows: 1. Lifetime Warranty: Currently, BYD's battery warranty policy offers a lifetime warranty on the three major electric components (battery, motor, and electronic control) for the first private owner (non-commercial use), while the vehicle warranty policy covers 6 years or 150,000 kilometers. For the three major electric systems, BYD provides a lifetime warranty, which is very rare among all new energy vehicle manufacturers and demonstrates BYD's confidence in its three major electric products. 2. Battery Replacement: According to BYD's warranty terms, free battery replacement is only available when the battery's degradation is abnormal. As for the standard of degradation, BYD has not yet provided an official calculation method, and the government has not established relevant regulations. Currently, the most common industry practice is to replace the battery free of charge when the degradation exceeds 30%.
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What Makes Honda Engines So Powerful?

Here are the key reasons behind the formidable performance of Honda engines: 1. VTEC System: The exceptional power of Honda engines stems from three core technologies. The first is the VTEC system. This system remains imperceptible during low-speed driving, but once high-speed operation begins, the engine automatically extends the intake valve timing. The explosive force of the turbocharged engine instantly fills the vehicle with dynamic power. For male drivers who own a Honda, high-speed driving delivers an exhilarating surge of primal energy. Additionally, Honda vehicles offer excellent cost-performance ratio. 2. i-VTEC System: The second technology is the i-VTEC system. As an upgraded version of the previous system, it retains all the advantages while incorporating a variable timing control system. The result is an engine that delivers both superior power and improved fuel efficiency.
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How to Replace the Battery of a Jeep Compass?

The method to replace the battery of a Jeep Compass is as follows: 1. Open the battery compartment, where you will see a fixed bar secured on top of the battery. Use an 8-size wrench to loosen it; 2. After loosening and removing the bar, you will see markings for the positive (+) and negative (-) terminals. First, disconnect the positive terminal, then the negative one, and then install the new battery. Taking the Compass 2021 220T Automatic Leading Edition as an example, it is a compact SUV under the GAC FCA Jeep brand. In terms of the suspension system, the front suspension of this vehicle is a MacPherson independent suspension, while the rear suspension is a multi-link independent suspension, with a front-engine, front-wheel-drive layout.
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How to Replace the Key Battery for Kodiaq?

The method to replace the key battery for Kodiaq is as follows: 1. Prepare a screwdriver and locate the opening notch on the side of the key; 2. Use the screwdriver to pry open the seam along the side from the notch; 3. Locate the battery inside the key and use the screwdriver to remove it for replacement. Taking the Kodiaq 2021 TSI330 5-seat two-wheel-drive Comfort Edition as an example, it is a mid-size SUV under SAIC Volkswagen Skoda. In terms of powertrain, this model is equipped with a 2.0T turbocharged engine, featuring a 5-door, 5-seat SUV body type. The front suspension is a MacPherson independent suspension, and the rear suspension is a multi-link independent suspension.
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Can the car still be driven with slight camshaft wear?

It cannot continue to be driven, and the specific reasons are as follows: 1. Damage: Damage to the camshaft will cause the transmission mechanism to operate unevenly, the pushrod's reciprocating motion cannot proceed at a constant speed, and the thread winding on the spool will have uneven distribution, leading to thread compression. 2. Aggravated damage: Damage to the camshaft can cause excessive mechanical vibration, accelerated wear, and in some cases, resonance, leading to premature machine failure. Camshaft damage can also result in fluctuations in power output, causing unstable motor speed and premature motor damage. Additional information: Difficulty in refueling, ignition failure, idling issues, the fault light staying on, camshaft sensor damage, symptoms include sudden engine stall when hot or EPC light on, idling at 1000 rpm, and maximum speed not exceeding 3000 rpm.
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What to Do About Sagitar Idle Shaking?

Sagitar idle shaking causes and solutions are as follows: 1. Excessive engine carbon deposits: When there is too much carbon buildup inside the engine, the vehicle's ignition energy decreases, intake efficiency drops, ultimately leading to unstable engine power output, idle shaking, and weak acceleration. Solution: Clean the throttle body and fuel system, remove carbon deposits. 2. Ignition system malfunction: The most common faulty component is the spark plug. Since spark plugs are highly susceptible to wear, they need regular replacement. Solution: Replace the spark plugs. 3. Poor fuel quality: Low-quality engine oil can damage the engine. Solution: Replace the engine oil promptly. 4. Idle control valve failure: The idle operation of electronic fuel injection engines is mostly controlled by the idle control valve. The ECU controls the opening of the idle control valve based on signals such as engine speed, temperature, and throttle position to maintain stable engine idle. Once faulty, it causes uneven air intake distribution, fluctuating idle power, and vehicle shaking. Solution: Inspect and repair the idle control valve.
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