What Causes Loud Abnormal Engine Noises?

1 Answers
DiLilliana
07/30/25 2:41am
Engine abnormal noise is loud because the foot pad is damaged and aged after long-term use. Engine: An engine is a machine that can convert 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. For example, internal combustion engines usually convert chemical energy into mechanical energy. The engine is suitable for both power generating devices and the entire machine including the power device (such as gasoline engines, aircraft engines). The engine was first born in the UK, so the concept of the engine also comes from English, and its original meaning refers to "mechanical devices that generate power". Engine abnormal noise: The engine is the heart of the car and needs to withstand long-term and high-load work. Over time, the internal parts of the engine will inevitably experience wear and aging. The most direct phenomenon of component failure is the engine making various abnormal noises during operation. Compared with the abnormal noise of accessories installed outside the engine, the abnormal noise inside the engine cylinder is slightly more difficult to determine the source of the fault because it cannot be visually observed and inspected.
Was this review help?
12
0
Share
More Forum Discussions

Can the old inspection sticker be removed after the vehicle passes the annual inspection?

Can the old inspection sticker be removed after the vehicle passes the annual inspection? The owner of the motor vehicle can apply for the inspection compliance sticker at the vehicle management office of the registration location within three months before the expiration of the valid inspection period. Therefore, it is no problem to immediately affix the new sticker after completing the process in advance. Vehicle annual inspection is a mandatory test for every vehicle that has obtained an official license plate and registration certificate. The method to remove the old sticker is as follows: First, check whether a protective film is applied on the front windshield. If there is one, it is not recommended to use a knife to scrape it off, as this can easily damage the protective film. Lay a towel on the dashboard, then spray adhesive remover directly onto the inspection sticker, ensuring the entire sticker is soaked. Let it sit for two minutes. Afterward, peel off the inspection sticker by hand and wipe off any residual adhesive with the towel.
13
4
Share

What is the problem with the air conditioning not cooling in the Changan CS35?

The reasons why the air conditioning in the Changan CS35 is not cooling: 1. The condenser is too dirty, leading to poor heat dissipation. The condenser is prone to accumulating dust and small insects. If not cleaned for a long time, the heat dissipation of the condenser will be poor, and the cooling effect of the air conditioning will also significantly decrease. 2. The cooling fan is not working. The cooling fan not working also has a significant impact on the heat dissipation of the condenser. 3. The refrigerant pressure is too high or too low. The refrigerant, also known as Freon, is the cooling agent inside the air conditioning system. The refrigerant will naturally deplete over time in the air conditioning system. 4. Refrigerant leakage. Common leakage points include the air conditioning pipes and the evaporator, and related components need to be replaced. 5. The air conditioning belt is slipping. Belt slippage can cause abnormal operation of the air conditioning compressor and poor cooling effect. The air conditioning belt needs to be replaced or the belt tension adjusted. 6. Other component failures in the air conditioning system.
14
5
Share

Can Volkswagen Bora use 5w30 engine oil?

Volkswagen Bora can use 5w30 engine oil because this type of oil has relatively low viscosity and good low-temperature fluidity, generally suitable for various weather conditions. Engine oil specifications: The number before 5w represents the low-temperature viscosity. The smaller the number, the lower the viscosity of the oil, the better the low-temperature fluidity, and the lower the applicable minimum temperature; 30 means it can be used in environments with temperatures below 30 degrees. Precautions: When selecting engine oil for Volkswagen Bora, it is necessary to strictly choose the same specification oil according to the prescribed oil grade. If the same grade is not available, only a higher-grade oil can be used, and lower-grade oil should not be used as a substitute; if the engine is in good condition and the seasonal temperature is low, Bora should use oil with as low viscosity as possible to ensure smooth oil circulation.
3
2
Share

How to reset the tire pressure on Changan CS15?

Changan CS15 tire pressure monitoring reset method is as follows: 1. When the ignition switch is turned on, briefly and repeatedly press the control OK button to select the tire pressure display and "Tire Pressure" function, then hold for about 3 seconds to initiate the reset. 2. After that, the tire icon will flash first, followed by the message "Tire Pressure Monitoring Starting", then "Tire Positioning In Progress", indicating that the tire pressure reference value reset request has been confirmed. Here is some related information: 1. When the Changan CS15 tire pressure monitoring light is on, inflate the tires to the normal pressure, and after driving for a while, the tire pressure light will automatically turn off. The tire pressure monitoring light indicates abnormal tire pressure. 2. The main purpose of installing a tire pressure monitoring system in a vehicle is to automatically monitor the tire pressure in real-time during driving and alert the driver to tire leaks and low pressure to ensure driving safety.
12
1
Share

Is the Electronic Driver's License Nationwide Valid?

Electronic driver's license is a nationwide valid driver's license and has the same legal effect as the paper driver's license. Composition of the electronic driver's license: It includes two parts: the main page and the supplementary page. The main page includes basic driver's license information, the generation time of the electronic license, QR code and barcode for verification, etc.; the supplementary page mainly includes the driver's address, issuing authority, driving record, and the code of permitted driving vehicle types. Usage method: Drivers can log in to the Traffic Management 12123 APP to query and present their electronic driver's license in real time. When offline, they can also view the generated electronic driver's license on the Traffic Management 12123 APP, but cannot use previous screenshots; in addition, they can apply for an electronic driver's license at the service windows of each branch of the vehicle management office or the traffic police brigade's vehicle propaganda team.
11
5
Share

What does the OFF button mean in Volkswagen automatic transmission?

The OFF button in Volkswagen automatic transmission vehicles refers to the deactivation button for the Electronic Stability Control (ESC) system. This button is enabled by default, and pressing and holding it can deactivate the system. It is an active safety device primarily designed to prevent the vehicle from skidding or losing control. If the OFF light on the car illuminates, it indicates that the vehicle's ESC system is either deactivated or malfunctioning. OFF on the air conditioning control panel: When the vehicle's air conditioning system is operating normally, pressing the OFF button on the control panel can shut down the system. The control panel does not have a dedicated ON button; however, pressing any button on the panel can turn the system back on. OFF in other systems: For example, the light switch, wiper switch, and cruise control switch all have OFF buttons. When the corresponding operation is set to the OFF position, that system will be deactivated.
7
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.