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What Causes the Abnormal Noise When a Car Goes Over Speed Bumps?

2 Answers

FinleyDella

07/29/25 3:37am

The abnormal noise when a car goes over speed bumps is caused by aging rubber in the chassis. Replacing the rubber components can resolve the issue. The chassis refers to the combination of four systems in a vehicle: the transmission system, the running gear system, the steering system, and the braking system. It supports and mounts the engine and other components, forming the overall structure of the vehicle, bearing engine power, and ensuring normal operation. The transmission system mainly consists of the clutch, gearbox, universal joint, drive shaft, and drive axle. The running gear system is composed of the frame, axle, suspension, and wheels. The steering system includes the steering wheel, steering gear, steering knuckle, steering arm, tie rod, and drag link. The braking performance of a motor vehicle refers to its ability to come to a forced stop within a short time.

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StJoanna

08/12/25 7:26am

Last time my car made a creaking noise over speed bumps, and it turned out to be an issue with the suspension system when I took it for repairs. Worn-out shock absorbers are a major culprit—when the seals fail and the oil leaks, they cause friction and weird noises over bumps. Also, worn suspension bushings with hardened rubber lose elasticity, leading to metal-on-metal clunking. I’ve also experienced loose ball joints in the steering linkage, which twist and produce noises over speed bumps. Other undercarriage components like loose control arm bolts or corroded, loose spring seats can cause similar sounds. In short, these noises often stem from metal fatigue and part wear, especially after tens of thousands of miles. My advice? Don’t delay—schedule a thorough suspension and chassis inspection, replacing parts if needed to prevent safety risks.

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What Does the Triangle with an Exclamation Mark Mean in Haval?

A triangle with an exclamation mark inside indicates a malfunction in the vehicle's routine performance, components, or functions. Common issues include parking sensor failure, fuel cutoff system intervention or malfunction, external light failure, or engine oil pressure sensor failure. Solution: Visit a 4S shop for inspection to identify the source of the fault. The exclamation mark is a common fault alert in vehicles. Besides the triangle with an exclamation mark, there are four other forms of exclamation mark alerts: a yellow gear with an exclamation mark inside, a red circle with parentheses and an exclamation mark in the middle, a yellow bracket with a horizontal line and an exclamation mark in the middle, and a yellow bulb with an exclamation mark. Below is a detailed analysis of these four scenarios: Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission issue or transmission lubricant below the normal range. Transmission fluid should be replaced promptly. Brake System Fault: A circle with parentheses and an exclamation mark in the middle represents a brake system alert, primarily indicating brake system malfunction or low brake fluid level. Immediate inspection of the brake system is required to prevent accidents. Tire Pressure Anomaly: A bracket with a horizontal line and an exclamation mark in the middle is the tire pressure monitoring warning light, which illuminates when the vehicle's tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the issue.

What is the difference between 1.5t and 2.0t engines in compact cars?

The following are the differences between 1.5t and 2.0t engines in compact cars: 1. Power: The 2.0t model has a larger displacement than the 1.5t model, resulting in stronger power, but also higher fuel consumption. Both are turbocharged, and the larger the displacement, the higher the engine's output power. 2. Displacement: Both 1.5t and 2.0t engines feature turbocharging technology, with the main difference being displacement. For car enthusiasts pursuing power, the 2.0t is the better choice as it offers stronger performance; if it's just for family use, most 1.5t models can meet the requirements, and the 1.5t has lower fuel consumption and maintenance costs compared to the 2.0t.

Where is the cigarette lighter fuse of Chery E3?

On the left side of the cab, where it contacts the door, the shell indicates which one is the cigarette lighter fuse. Precautions are as follows: 1. Do not replace with a fuse with a higher rated current: Replace the fuse according to the rated current value indicated on the fuse box cover, and do not replace it with a fuse with a higher rated current. 2. There may be a fault in the circuit system, which should be repaired as soon as possible: If the new fuse blows immediately, it means that there may be a fault in the circuit system, and it should be repaired as soon as possible. 3. Replace the fuse of other equipment: In the absence of a spare fuse. In an emergency, you can replace the fuse of other equipment that does not affect driving and safety. 4. Use a substitute with a lower rated current than the original fuse: If you cannot find a fuse with the same current load, you can use a substitute with a lower rated current than the original fuse.

What is the reason why the clutch of Chery A3 does not spring back after being pressed down?

The reasons why the clutch of Chery A3 does not spring back after being pressed down include: the clutch return spring is too soft or the clutch pedal travel is too large and pressed too hard; mechanical parts overlap and rub with other objects; the return oil hole of the clutch oil pump is blocked. In this case, it is recommended to go to the car repair shop in time. The following is an extended introduction: 1. Clutch position: located in the flywheel housing between the engine and the gearbox, the clutch assembly is fixed on the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the gearbox. 2. Principle: during the driving process, the driver can press or release the clutch pedal as needed to temporarily separate and gradually connect the engine and the gearbox, so as to cut off or transmit the power input from the engine to the gearbox.

How did the slogan 'Chery Chery, queue up for repairs' come about?

Chery used 20% of its registered capital to purchase part of SAIC's sales channels (4S stores), but for some reasons, SAIC was unwilling to let Chery continue using its resources. Since Chery lacked its own sales channels and SAIC's 4S stores refused to provide after-sales services for Chery vehicles, many Chery car owners had to queue up for repairs at the few Chery 4S stores when their vehicles encountered issues, leading to the origin of this saying. Below is an extended introduction: Brand Introduction: During an inspection of the European automotive industry in January 1995, Chery Automobile Co., Ltd. learned that a Ford engine production line in the UK was for sale. Leaders from Wuhu, Anhui, seized this opportunity to initiate the project. Due to national policy restrictions on passenger car projects, the initiative had to be conducted secretly. Thus, the project was internally codenamed 'Project 951' (i.e., Anhui's top project during the Ninth Five-Year Plan period) and publicly referred to as 'Anhui Automotive Components Industrial Company (Preparatory Office)', maintaining a low profile externally.

What is the difference between Type T and Type B motorhomes?

The differences between Type T and Type B motorhomes are as follows: 1. Introduction to Type B motorhomes: These are modified vans where the box body comes with the original vehicle, and the vehicle frame remains unchanged or the roof is slightly modified. 2. Introduction to Type T motorhomes: These are directly modified on a Category II chassis, with the box body added during modification. 3. Advantages of Type B motorhomes: Highly practical for corporate business receptions, travel, and business trips, with strong practicality and high cost performance. 4. Disadvantages of Type B motorhomes: Type B vehicles have a series of optional configurations, typically with relatively simple facilities. New Type B motorhomes can be equipped with a hygiene system, bed, and bathroom, with living space relatively suitable for 3-4 people. 5. Advantages of Type T motorhomes: Compared to Type B, they offer more comfortable space, equipped with a refrigerator area. The oven also provides larger storage space, giving more of a home-like feeling. Type T motorhomes, due to their comprehensive features, have become the preferred choice for most family motorhomes. 6. Disadvantages of Type T motorhomes: Due to limitations in length and external height, most motorhomes cannot be parked in parking spaces or garages.

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