The old Yinglang gt accelerates like a pickup truck with the sound of refueling.

1, the exhaust pipe is leaking. When there is a leak in the intake and exhaust pipes, the vehicle will accelerate and the exhaust speed will increase. At this time, there will be a loud roar of vehicles. The throttle is dirty and blocked. When the car accelerates, the load on the engine begins to increase. At this time, it is necessary to increase the throttle opening and increase the fuel quantity. If the throttle opening is not opened to the optimal position due to dirty blockage, it will cause poor engine mixing ratio and make noise when accelerating. 3. The engine lacks cylinders, mainly because one or more cylinders of the engine are not working normally. The general performance is: the vehicle power is insufficient, the exhaust pipe is shaking seriously, and the engine "chug" sound or plop, plop roar can be clearly heard.