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What are the symptoms of dirty fuel injectors?
Dirty or clogged fuel injectors can cause a variety of symptoms that negatively impact the performance and efficiency of your internal combustion engine. Here are some common symptoms associated with dirty injectors:
① Unstable idle speed: When the fuel injector is dirty, the engine may be unstable or have an unstable idle speed. Uneven fuel spray disrupts the combustion process at low speeds.
② Misfires: Dirty injectors can result in uneven fuel distribution, leading to engine misfires. Misfires may cause the engine to run unevenly or produce a noticeable "stumbling" sensation.
③ Poor acceleration and power loss: Reduced fuel injection patterns will affect the engine’s power generation capacity. You may notice sluggish acceleration and an overall decrease in engine performance.
④ Increased fuel consumption: Dirty fuel injectors will lead to low fuel combustion efficiency, resulting in reduced fuel efficiency. If you find yourself refueling more often than usual for no apparent reason, this could be a sign of dirty injectors.
⑤ Hesitation or stalling: When the injector does not deliver the appropriate amount of fuel, the engine may hesitate or stall during acceleration or deceleration.
⑥ Increased emissions: Inefficient combustion due to dirty fuel injectors may result in higher emission levels.
⑦ Engine surge: Dirty fuel injectors may cause engine speed to fluctuate, resulting in surge or inconsistent performance.
⑧ Difficulty starting: A dirty fuel injector will cause difficulty in starting the engine, especially when the car is cold. It may take more cranks or attempts to start the vehicle.
⑨ Excessive exhaust smoke: Poor combustion will lead to increased exhaust smoke. You may observe black smoke, indicating that the fuel is not burning, or white smoke, which may indicate that coolant is entering the combustion chamber.