What are the signs of a faulty throttle body?
2 Answers
Here are the signs of a faulty throttle body: 1. Unstable engine idle speed; When the car's throttle body malfunctions, the engine idle speed tends to become unstable, particularly manifesting as persistently high idle speed that won't decrease. In severe cases, the engine may fail to idle at all. If such symptoms occur, it may indicate a faulty throttle body. 2. Difficult engine starting; A malfunctioning throttle body affects the engine's air intake volume, leading to starting difficulties. This is especially noticeable during cold starts, which may become particularly challenging. When encountering such issues, it's advisable to inspect the car's throttle body to determine if it's the cause of the engine starting difficulties.
When I first bought my car, I noticed that it would shake like an earthquake when stopped at a red light, with unstable idling that was really annoying. The acceleration response was slow when stepping on the gas pedal, like stepping into mud, with no power when speeding up. The fuel consumption kept rising, costing me an extra two hundred bucks a month on gas, and my wallet was thinning fast. Cold starts often failed, requiring several attempts before success. The engine warning light sometimes turned yellow, like a warning signal. Don’t ignore these minor issues—get to the shop early to clean the throttle body, or you might end up stranded on the road, which is both dangerous and time-consuming. Having driven for years and encountered such problems, I remind everyone that daily observation can prevent them.
