Why does a Buick car display reduced engine power?

2 Answers
Alexandra
07/24/25 6:12am
The reasons why a Buick car displays reduced engine power are: 1. Poor gasoline quality and clogged fuel lines; 2. Insufficient engine oil, insufficient engine coolant, or engine overheating caused by faulty engine cooling systems. Buick models include: Buick GL8, Buick Excelle, Buick Regal, Buick LaCrosse, Buick Envision, etc. Taking the 2021 Buick GL8 as an example, it is an MPV with body dimensions of: length 5238mm, width 1878mm, height 1776mm, and a wheelbase of 3088mm. The 2021 Buick GL8 is equipped with a 2.0T turbocharged engine, with a maximum horsepower of 237PS, a maximum torque of 350Nm, a maximum power of 174kW, and is paired with a 9-speed automatic transmission.
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DeLiam
08/11/25 1:58am
While troubleshooting Buick engine issues, I've encountered the power reduction warning multiple times. This is often linked to throttle position sensor failure, which regulates engine air intake; it could also stem from fuel system problems, like unstable fuel pump operation causing low pressure, or a clogged air filter restricting airflow. I recommend first using an OBD scanner to retrieve trouble codes – common ones like P2135 or P0231 can quickly pinpoint the cause. Additionally, excessive carbon buildup on turbocharger blades may trigger power loss. Never ignore this warning – pull over immediately for inspection. Continued driving risks internal engine damage or even stalling. Visit authorized repair shops for thorough diagnostics – they can clean sensors or replace components for a permanent fix, preventing costlier overhauls. Remember, routine maintenance like carbon cleaning and fuel line inspections helps prevent such failures.
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