What Causes the Rattling Noise When Accelerating Uphill in a Car?

1 Answers
DiParker
07/29/25 1:04pm
Car accelerating uphill when the noise is caused by aging or loosening of the engine mount pads, or carbon buildup in the throttle body. Here are the specific details: Aging or Loosening of Engine Mount Pads: Engine mount pads, also known as engine mounts, are typically installed between the engine and the car body, connecting the two and securing the engine in place. Once they age or become loose, they can easily cause resonance during rapid acceleration, leading to noise. Carbon Buildup in the Throttle Body: Excessive carbon buildup in the throttle body can result in insufficient valve opening during rapid acceleration, causing noise. Additionally, the engine may exhibit symptoms such as shaking and reduced power. It is recommended to clean the throttle body promptly.
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