What Causes the Engine to Sound Loud in a Car?
1 Answers
Here are the reasons why a car's engine may sound loud and the corresponding solutions: 1. If pressing the accelerator does not result in obvious acceleration and the entire car emits a "buzzing" sound, it may be due to a clogged air filter or exhaust pipe, a problematic oil strainer, or poor sealing of rubber rings. This prevents the oil pump from properly drawing up oil and instead sucks in a large amount of air, leading to insufficient lubrication in the engine system, especially in the hydraulic valve lifters, which can produce a metallic knocking sound. If the oil strainer is clogged, it cannot properly draw oil into the engine lubrication system, resulting in poor lubrication. 2. If the engine emits a "hissing" sound, experiences a drop in power, shakes, and the malfunction indicator light turns on, it may be due to a vacuum tube leak. Upon hearing this sound, the engine will quickly lose power. Check for engine overheating, inspect the cooling system, exhaust system blockages, and vacuum tube leaks or breaks. 3. If there is noise from the exhaust pipe or very loud noises coming from it, the engine may also sound loud. Sometimes similar noises may come from the front section, with the main issue lying in the exhaust system. Check for a damaged exhaust pipe gasket or a cracked exhaust pipe.
