What to Do When the Engine Makes Abnormal Noises While Driving?

1 Answers
MarcusMarie
07/25/25 1:41am
When the engine makes abnormal noises while driving, it is recommended to promptly visit a 4S shop or a professional auto repair shop for inspection by maintenance personnel. Only by identifying the source of the problem can targeted repairs be made. Abnormal engine noises in cars can be categorized into many types, such as noises during rapid acceleration, cold starts, or idling. Each situation requires distinct analysis. Below are common causes of abnormal engine noises in cars: 1. The phenomenon of engine knocking is characterized by a "clanging" sound, mainly caused by the collision between the piston skirt and the cylinder wall during engine operation, often due to poor lubrication conditions. The solution is to replace the engine's four supporting components. 2. Abnormal noises in the intake and exhaust systems, such as intake manifold leaks, manifest as noises during idle operation, which intensify with increased engine speed. 3. A "hissing" noise from the engine is likely due to issues in the cooling system, leading to engine overheating. 4. A "squeaking" noise from the engine, especially more noticeable when the air conditioning is on, is probably due to the engine belt slipping. 5. A "clicking" noise from the engine is likely caused by engine carbon deposits, and it is advisable to use higher-grade gasoline.
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