What are the causes of severe engine shaking in cars?

1 Answers
DelTaylor
07/29/25 5:00pm
Engine shaking can occur at high speeds, during idling, and in some vehicles, even jumping phenomena may occur. The following are the causes of engine shaking: 1. Aging or loosening of the engine mounts. 2. Severe carbon buildup in the engine. 3. Malfunction in the fuel system. 4. Issues with the intake system. 5. During cold starts, incomplete combustion of gasoline can cause engine shaking, which is normal and the shaking disappears after the engine warms up. The engine will shake during operation, but under normal circumstances, the shaking is relatively smooth and regular. If you can clearly feel increased or persistent engine shaking, it is necessary to conduct a repair check at this time.
Was this review help?
9
4
Share
More Forum Discussions

Why is the vehicle's fuel consumption increasing?

There are several reasons why a car's fuel consumption may be increasing: 1. After cleaning the throttle body, failure to properly match or unsuccessful matching with the engine control unit can lead to rising fuel consumption. 2. Malfunctions in the engine's electronic control system may cause an overly rich air-fuel mixture, resulting in higher fuel consumption. 3. Damaged engine ignition coils or spark plugs, or leaking fuel injectors can increase fuel consumption. 4. Faults in the engine cooling system may cause the engine temperature to remain too low, keeping it in warm-up mode. 5. Excessive carbon buildup in the engine can lead to incomplete combustion. 6. Malfunctions in the fuel tank ventilation system may cause fuel vapor leaks.
18
3
Share

What is the function of the evaporator in a car's air conditioning system?

The function of the evaporator in a car's air conditioning system is to evaporate the low-pressure refrigerant coming from the expansion valve, absorbing heat from the air inside the vehicle to achieve the purpose of cooling the interior. The evaporator acts as a heat exchanger where high-pressure liquid refrigerant enters through the expansion valve. Due to the atomization effect of the expansion valve, the liquid refrigerant turns into a mist, which then changes into a gaseous state under low-pressure conditions. There are several types of evaporators, including tube-fin, tube-belt, and laminated types. Currently, passenger cars in China mainly use all-aluminum laminated and tube-belt evaporators, while large buses primarily use copper tube-aluminum fin evaporators. Medium-sized buses may use any of these types, with tube-belt evaporators being the most common.
9
1
Share

How long does it take to charge the battery of a small vehicle?

It takes about 4 hours to charge a car battery. The functions of the battery are: 1. When the generator is overloaded, it can assist the generator in supplying power to the electrical equipment; 2. When the generator is not generating electricity or the voltage is low, it supplies power to the electrical equipment; 3. It can convert part of the electrical energy into chemical energy for storage. The solutions for a dead car battery are: 1. Manual push-start method: Engage first gear and slowly release the clutch, using the rotational force of the wheels to drive the engine flywheel; 2. Towing start method: Use a tow rope of appropriate length to securely connect the stalled vehicle and the rescue vehicle; 3. Jumper cable method: Connect the jumper cables to the stalled vehicle and the rescue vehicle.
19
2
Share

What is the difference between Audi RS4 and S4?

Audi RS4 and S4 differences: 1. Different models: The Audi RS4 is a station wagon, while the S4 is a sedan. 2. Different engines: The Audi RS4 uses a 2.9-liter twin-turbocharged V6 engine, while the Audi S4 uses a 3.0-liter turbocharged engine. The RS4's 2.9-liter twin-turbocharged engine produces 450 horsepower and 600 Nm of maximum torque, with a maximum power range of 5700 to 6700 rpm and a maximum torque range of 1900 to 5000 rpm. The S4's 3.0-liter turbocharged engine delivers a maximum power of 260 kW and 500 Nm of maximum torque. 3. Different trunk capacities: The Audi RS4 has a trunk capacity of 1430L, while the Audi S4's trunk capacity is 480L.
4
2
Share

Is the Driver's License Nationally Networked?

Driver's licenses are nationally networked. Below are specific details regarding driver's licenses: Definition: In this country, a driver's license is defined as a legal document issued by the administrative authorities to individuals who have legally been permitted to learn to drive motor vehicles, have studied and mastered traffic regulations and driving skills, and have passed the required examinations, authorizing them to drive certain types of motor vehicles. Usage of the Document: A driver's license, abbreviated as 'driving license' or 'license,' commonly referred to as a 'car permit' in some regions, is known as a 'driving licence' in Taiwan, Hong Kong, Macau, Singapore, and Malaysia, and colloquially called a 'license plate' in Cantonese. It is a certification document issued by the government's transportation department to individuals qualified to drive, typically in the form of a card.
7
3
Share

Why does the car still make noise at the front after turning off?

When the engine temperature is too high, even if the car is turned off and the key is removed, the cooling system will still automatically activate to cool down the engine system. Below is an introduction to engine maintenance: 1. Keep it clean: Keep the oil, water, air, and engine body clean. Impure fuel can affect the matching components, while impure coolant can hinder engine heat dissipation. 2. Keep it sufficient: Ensure sufficient oil, water, and air. Proper engine maintenance keeps the engine in good condition. 3. Quality fuel: Use reliable quality fuel and pay attention to the maintenance of the fuel system, which is especially important for fuel-injected engines. Regular inspection, addition, and replacement of engine oil are also part of engine maintenance. 4. Regular cleaning: Regularly clean the engine radiator to remove rust and scale, which is a method of engine maintenance. Also, regularly clean the fuel system to control carbon deposits and maintain the engine in optimal condition.
8
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.