What are the symptoms of throttle leakage?
2 Answers
Symptoms of throttle leakage: unstable engine idle, jerking during driving, insufficient power, occasional stalling after parking, and the leakage area may blacken the engine cover. Throttle leakage is usually caused by leakage between the throttle seat and the intake pipe interface seat. This interface is generally fixed with screws and clamps, and improper installation can easily lead to leakage. The solution to throttle leakage is to directly replace the plastic hose between the throttle and the intake manifold. The functions of the throttle: 1. The throttle is a controllable valve that controls the air entering the engine. After the gas enters the intake pipe, it mixes with gasoline to form a combustible mixture, which then burns and works; 2. The throttle is connected to the air filter at the top and the engine block at the bottom, and is known as the throat of the car engine.
My car has been shaking badly at idle recently, with the RPM fluctuating up and down like an unstable pendulum. Acceleration is as slow as a snail climbing a hill, and there's barely any response even when I floor the gas pedal. Fuel consumption has also jumped significantly - it used to be 8 liters per 100 km, but now it's shot up to 11. The engine light keeps flickering on, and it's hard to start, especially in winter. These are classic symptoms of a leaking throttle body. Air is sneaking in through damaged gaskets, messing up the ECU's fuel injection calculations and causing rough engine operation. If left unfixed, carbon buildup will increase and may even damage the oxygen sensor, making repairs more expensive. I regularly clean the throttle body and use high-quality filters to prevent issues. Don't ignore any abnormalities - get it checked early to be safe.