Why does the engine sound loud when stepping on the accelerator?

[MirandaFitz]

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.