Why is there a hissing sound when stepping on the accelerator?

[VonZachary]

The reasons for a hissing sound when stepping on the accelerator may be: 1. It could be the sound from the fuel pump or related components. 2. The clutch release bearing might be damaged. Solutions for the hissing sound when stepping on the accelerator are as follows: 1. To thoroughly resolve the issue, check if there is any air leakage in the engine's intake pipe, ensure the air filter is properly installed, identify the source of the sound, and inspect whether the engine belt is aged, loose, or slipping. 2. The location of the hissing sound matters. If it's on the right side of the engine, it's usually the generator belt; if on the left, it's likely an issue with the throttle body. For the front wheel brake pads, the main cause is often the brake caliper, with partial seizure being a minor cause. This might occur if the brake caliper piston was damaged when being pressed back during installation, leading to some degree of seizure.