Buick Excelle automatic refueling door. It only appears when the car is hot.

No maintenance was performed. The reason for the hot start of Buick Excelle automatic fuel filler door is that it has not been maintained for a long time. The vehicle has not been maintained for a long time, resulting in a large amount of carbon deposition in the throttle, which leads to the automatic upshift of the engine and the increase of the speed. It may also be that the circuit of the electronic throttle vehicle has been affected.