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How to Solve the Problem of Loud Engine Noise During Rapid Acceleration?

2 Answers

LeIvan

07/28/25 11:14pm

Solutions for loud engine noise during rapid acceleration include: 1. Paste heat insulation and sound-absorbing cotton as well as damping plates on the engine cover, and install heat insulation and sound-absorbing cotton and damping plates inside the cabin; 2. Apply soundproofing cotton inside the car trim panels to reduce resonance caused by thin metal sheets during driving, minimize loosening of the trim panels, and decrease metal fatigue and noise generated during twisting; 3. Attach sound-absorbing cotton to the door trim components, install door damping materials, and use sealing materials to enhance sealing, reduce resonance noise, and lower wind noise during high-speed driving; 4. Paste damping plates and sound-absorbing cotton on the front and rear wheel fenders to minimize abnormal sounds transmitted by the shock absorbers during driving and suppress impact noise from tires and road surfaces as well as metal sheets; 5. Apply a layer of heat insulation and soundproofing cotton on the cabin ceiling to effectively block intense sunlight, prevent a rapid rise in cabin temperature, and reduce resonance noise from the roof steel plate vibration.

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JackMarie

08/12/25 3:38am

I noticed that the engine noise suddenly gets louder when accelerating hard, which could be caused by vibration from a loose or worn belt. I've encountered this issue before. Check if the belt is too loose or has cracks—if it's too old, it should be replaced. Additionally, insufficient or dirty engine oil can cause dry friction and noise, so regular oil changes can help reduce the noise. If the engine mount is damaged, it can worsen the vibration noise—you can tighten the screws yourself, but it's best to have a professional inspect it. Loud noise during hard acceleration isn’t just annoying; it might also indicate a safety hazard, so don’t ignore it to avoid breaking down on the road. When driving daily, try to avoid frequent hard acceleration—gentle starts can protect the engine and extend its lifespan. During maintenance, remind the mechanic to focus on identifying the noise source—often, minor repairs can solve bigger problems. Anyway, addressing noise issues early is both safer and more cost-effective.

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