What are the reasons for the Buick Excelle engine shaking?
2 Answers
The reasons for the Buick Excelle engine shaking: 1. Engine misfire: One or more cylinders of the engine are not working properly; 2. Engine mount aging or loosening; 3. Carbon deposit issues: Carbon deposits include cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, and intake carbon deposits; 4. Fuel system failure: Adding incompatible fuel grades affects the car's power output, leading to reduced performance. The Buick Excelle is the fourth model produced by Buick based on the GM global platform, following the Regal, LaCrosse, and Enclave. The Buick Excelle has a length of 4609mm, a width of 1798mm, a height of 1486mm, and a wheelbase of 2640mm.
When driving my Buick Excelle, the engine shakes annoyingly, as if it's shivering. The shaking is particularly noticeable at idle, and acceleration isn't smooth either. It might be an issue with the ignition system, such as old spark plugs needing replacement, or faulty ignition coils causing uneven ignition. The fuel system is also crucial; clogged fuel injectors leading to insufficient fuel supply can cause shaking, or unstable fuel pump pressure. Additionally, damaged engine mounts losing their damping effect can transmit vibrations to the car body. Too much carbon buildup affects combustion efficiency, leading to unstable idle. Poor transmission connection might also cause联动发抖. From experience, I suggest first checking the spark plugs yourself—simply remove them to see if they're worn out. If that doesn't help, go to a professional shop for a comprehensive diagnosis as soon as possible, before a small issue becomes a big problem. Safe driving comes first; address minor issues promptly to avoid breaking down halfway.
