What causes the buzzing sound when stepping on the accelerator in MG6?
4 Answers
MG6 stepping on the accelerator with a buzzing sound may be due to the fuel pump or related components, or a faulty clutch release bearing. Causes of car abnormal noises: It is necessary to check whether there is air leakage in the engine's intake pipe, whether the air filter is installed properly, identify the source of the sound, and whether the engine belt is aging, loose, or slipping. The buzzing sound depends on where it occurs. On the right side of the engine, it is generally the generator belt; on the left, it is an issue with the throttle atmosphere. For the front wheel brake pads, the main reason is likely the brake caliper, with a small part being due to jamming. Solutions for accelerator abnormal noise: You can check the engine oil yourself. If the oil has not been changed for a long time or has deteriorated, these can increase friction between the cylinder valves and guides, as well as hydraulic lifters, leading to abnormal noises when accelerating. When the belt slips, it also produces a buzzing sound. Once the belt slips, it causes high friction temperatures, making the belt stretch longer, which worsens the slipping.
I encountered the exact same issue a few days ago with my MG6 - there's always this annoying buzzing/rubbing noise when accelerating. The most likely causes are either an aged or loose engine belt, which can create friction against the pulley during acceleration. It's easy to check: pop the hood and inspect the belt for wear or cracks, and you can also gently press it to test the tension. If the noise seems to come from the rear, it might indicate an exhaust pipe leak. I temporarily improved mine by tightening the belt screws, but regular maintenance is key - like annual belt inspections to prevent sudden failures. If the noise persists, don't hesitate to visit a repair shop immediately. Safety should always come first - never let minor issues escalate into major problems.
I've been into cars for several years, and common throttle-induced squeaking noises are often related to the belt system or exhaust pipe. The engine belt of the MG6 may produce friction sounds due to aging and slackness, especially noticeable during cold starts. If there's rust or gaps at the exhaust pipe joints, changes in throttle pressure can cause similar noises. It's recommended to lightly press the throttle in an open area, gradually accelerating and decelerating to listen for the direction of the sound. If it comes from the engine, prioritize checking the belt tensioner; if from under the car, inspect the exhaust system. Additionally, components with insufficient lubrication can also squeak, so try lubricating key points yourself. Developing regular maintenance habits, such as cleaning belt dust, can prevent such noises. If still unsure, it's best to have a professional diagnose it with tools.
I always put safety first, and the hissing sound when pressing the accelerator in my MG6 must never be ignored. That could very well be a precursor to mechanical component damage, such as the belt or bearings. Failing to address it promptly might lead to more severe failures, like stalling midway. My advice is to stop the car immediately and inspect the engine area—don't push through. For older cars, this is often due to belt aging, and replacing it with a new one usually solves the issue. The maintenance cost isn't high, but the results are significant. A simple weekly check on the car's condition ensures everything is in order. I'd rather spend a bit more on a proper inspection at an authorized shop than risk an accident, especially since I frequently drive long distances.
