Why does the engine sound loud when stepping on the accelerator?
2 Answers
The reasons for a loud engine sound when stepping on the accelerator are as follows: 1. The clutch is not fully released. 2. The engine oil is almost depleted. 3. The throttle needs maintenance or cleaning. Extended information on car maintenance knowledge is as follows: 1. Check the wear condition of the tires and clean the trunk. Replace the tires when they are close to the wear indicators, and check for bulges, abnormal wear, aging cracks, or other damage. 2. Clean and lubricate the engine compartment cover, door hinges, and trunk hinges to remove grease, then readjust and lubricate them. The antifreeze generally has a service life of two years, so it should be replaced during annual maintenance, and the cooling system should be thoroughly cleaned. Due to the hygroscopic nature of the braking system, the brake fluid should be replaced every two years.
Having driven for decades, I've noticed that the sound when stepping on the accelerator is mostly related to the engine speed. Just like how a person's breathing becomes heavier when running, the engine needs to 'breathe deeply' when the accelerator is pressed, causing the RPM to surge rapidly. The combustion chamber works more intensely, naturally making the sound louder. If there's a hole in the exhaust pipe, the noise can be particularly loud; aging belts may produce squeaking sounds; a clogged air filter can also make the engine 'pant heavily.' I recommend regularly checking the engine oil condition, as insufficient or old oil can make the sound harsh. If the engine sounds noticeably louder than usual, it's best to have it checked at a repair shop, as there might be an issue with the muffler or exhaust pipe.