Why Is My Engine Making Noise? ​

As a car owner, the sudden noise from the engine is really heart wrenching. Engine noise is a common problem in vehicles, with various causes that affect driving experience and vehicle health. Below is a list of common reasons to help you quickly locate and solve them.

1. Lubrication system issues

Engine oil is the "blood" of the engine, playing a role in lubrication, heat dissipation, and cleaning. Insufficient engine oil, increased friction between components, and noise generation; Oil viscosity that is too high or too low cannot function effectively and can also cause noise. For example, using high viscosity engine oil in summer during winter increases engine resistance and noise.

2. Belt issue

The engine belt is responsible for driving components such as water pumps and generators. Belt aging, looseness, or tensioner failure can cause the belt to slip and make sharp "squeaking" sounds during operation. Regularly checking the condition of the belt and replacing aged or damaged belts in a timely manner can avoid such noise.

3. Fuel issues

Using low-quality or unsuitable fuel for vehicles, insufficient combustion, decreased engine power, accompanied by shaking and noise. Poor quality fuel may also lead to carbon buildup, further affecting engine performance. Be sure to choose regular gas station fuel according to vehicle requirements.

4. Issues with the intake and exhaust systems

The intake and exhaust pipes leak, causing some gas to escape and disrupting the normal intake and exhaust of the engine, resulting in noise. Blocked exhaust pipes and poor exhaust emissions can also cause abnormal engine noise. Timely check the intake and exhaust system, repair leaks, clean blockages, and restore smooth engine operation.

5. Internal components of the engine malfunction

The wear or damage of internal components such as pistons, valves, and crankshafts in the engine can produce different types of noise. The piston makes a "clanking" sound when it hits the cylinder, and there is a "clanking" sound when the valve clearance is too large. This type of malfunction requires professional maintenance, and it is recommended to send it for repair in a timely manner to avoid the deterioration of the malfunction.

If the engine makes noise, calmly analyze and investigate from the above aspects. Simple problems can be solved on their own, while complex faults require the assistance of professional maintenance personnel. Pay attention to vehicle maintenance in daily life, regularly check engine oil, belts, etc., use high-quality fuel to keep the engine in good condition, and reduce the probability of noise occurrence.