What are the reasons for the engine malfunction light in a Buick car?
1 Answers
Buick car engine malfunction light is on due to: 1. Poor gasoline quality leading to incomplete combustion of the air-fuel mixture in the cylinder, resulting in carbon deposits; 2. Excessive engine mileage causing weakened spark plug performance; 3. Mechanical aging of the vehicle; 4. Damage, poor contact, or signal interruption of sensors such as water temperature, crankshaft position, air flow, intake temperature, and oxygen sensors. Taking the 2021 Buick GL6 as an example, it belongs to the MPV category with body dimensions of length 4692mm, width 1794mm, height 1626mm, a wheelbase of 2796mm, front and rear track of 1540mm, a fuel tank capacity of 45L, and a curb weight of 1490kg.