What Causes the Buzzing Resonance Sound in the Excelle?
2 Answers
Buzzing resonance sound in the Excelle may be caused by engine mounts. Below is an introduction to the Excelle: 1. Overview: The Buick Excelle is based on General Motors' global platform. The prototype of the Excelle is a globally developed mid-size sedan designed and developed by General Motors Daewoo Auto & Technology (GMDAT). 2. Positioning: The Buick Excelle is positioned as an entry-level family car. Its dynamic exterior and high-quality interior provide a premium experience for 'your first car.' The new drive system ensures smooth and fuel-efficient performance, while the entire lineup comes standard with the 10th-generation OnStar assistant, featuring built-in 4G LTE mobile hotspot and eConnect smart connectivity technology, supporting Apple CarPlay and Baidu CarLife.
I've been driving my Excelle for many years, and the most common cause of buzzing noise is the aging of engine mount rubber. It's like a cushion with holes, allowing vibrations to directly transmit into the cabin, especially noticeable at speeds of 40-60 km/h. Sometimes, it's due to loose or rusted exhaust pipe connections causing noise because the exhaust vibration frequency resonates with the car body. Last time my car had a buzzing sound, I lifted it up and found all the mounting bolts were loose—tightening them fixed the issue. If left untreated, the vibrations could potentially damage the engine. I make it a habit to check all mounting points during maintenance, focusing on prevention. Safety first—don't wait until the buzzing gets louder to fix it.
