What are the causes of engine vibration in the Buick Excelle?
4 Answers
The causes of engine vibration in the Buick Excelle are: 1. Engine misfire; 2. Aging or loosening of engine mounts; 3. Carbon buildup in the engine; 4. Fuel system malfunction. An engine is a machine that converts other forms of energy into mechanical energy, originating in the UK. It can refer to either the power generation device or the entire machine including the power unit. The Buick Excelle is a premium mid-size car launched by SAIC General Motors, with dimensions of 4419mm in length, 1814mm in width, and 1487mm in height, and a wheelbase of 2685mm. In terms of power, the Excelle is equipped with 1.3T and 1.0T Ecotec dual-injection turbocharged engines, delivering maximum power outputs of 120kW and 92kW, and maximum torque outputs of 230Nm and 170Nm, respectively.
My Buick Excelle has been running for four or five years, and recently the engine has been shaking badly, especially at idle where the entire steering wheel vibrates. I took it to my regular repair shop, and the mechanic said it was caused by aging spark plugs. After replacing them with a new set, the shaking stopped immediately. It could also be due to excessive carbon buildup in the throttle body blocking the air intake or worn engine mounts losing their damping effect. My takeaway is that such shaking in Buick Excelle models is common in older cars. It’s best to inspect the ignition system and filters every 20,000 kilometers and clean carbon deposits promptly to avoid major repair costs. Also, avoid low-quality gasoline and fill up at reputable stations to minimize clogging from impurities. If the shaking gets severe, don’t push it—delaying repairs could damage the engine or increase fuel consumption, costing more money and compromising safety.
After driving a Buick Excelle for nearly 100,000 kilometers, I've found that engine shaking is mostly caused by ignition system issues. Spark plugs can become eroded with prolonged use, and faulty ignition coils may lead to misfires, causing the engine to fluctuate unevenly. The fuel system could also be the root cause, such as clogged fuel injectors leading to uneven fuel supply, or a failing fuel pump resulting in unstable pressure, both of which can cause incomplete combustion and increased shaking. From my experience, if the car shakes accompanied by unusual noises, it's best to check these components first. Using an OBD tool to read fault codes can quickly diagnose the problem. Additionally, a dirty air filter restricting airflow or worn-out engine mounts with poor damping can also exacerbate the shaking. For prevention, upgrading to high-quality spark plugs and using cleaning agents for regular maintenance can extend the lifespan and reduce issues.
I'm the type who enjoys tinkering with my car myself. The Buick Excelle's engine is shaking? First, I check if the spark plugs are eroded—unscrew them to see their color. If they're black or have carbon buildup, replace them. A dirty air filter can also cause poor airflow and shaking; cleaning or replacing it takes just ten minutes. If the problem persists, inspect the connections of the ignition coils and fuel injectors. These DIY steps can help identify common root causes, saving on repair costs.
