It's a distinct hissing, popping, or rumbling that intensifies as you press the gas pedal. An exhaust leak sound when accelerating often resembles a hissing or tapping noise This noise typically intensifies as the vehicle's speed increases. There are a few potential causes for a popping sound coming from the exhaust when accelerating It could be due to the engine backfiring, which is usually caused by an issue with the ignition timing It could also be caused by a leak in the exhaust system, which would allow unburned fuel to enter the muffler and create a popping sound when it ignites
Another possibility is that something is. Exhaust system leak one of the most common reasons for a loud engine when accelerating is an exhaust leak The exhaust system helps to reduce engine noise and direct fumes away from the cabin If there’s a leak in the exhaust manifold, catalytic converter, or muffler, the sound from the engine will be much louder than usual. Locate the exhaust leak by running your vehicle and spraying the exhaust line with soapy water—you'll see bubbles forming over the leak Patch and fix the exhaust pipe or have a mechanic repair it for you.
