Chevrolet S10 rough idling issue after adding fuel additive on Chevrolet S10

Some Chevrolet S10 owners report experiencing rough idling issues after adding a fuel additive, which may be attributed to several factors. These include problems with fuel injectors, where bad injectors can lead to inconsistent fuel flow and cause the engine to operate unevenly. Additionally, major mechanical issues within the engine can also result in rough idling. Symptoms of bad fuel injectors often manifest as engine vibrations and uneven running. Furthermore, a lack of fuel system maintenance, such as not cleaning the fuel injectors, can exacerbate performance issues and contribute to rough idling. To address these concerns, owners are advised to inspect the fuel injectors, have a mechanic check for any significant mechanical problems, and consider a thorough cleaning of the fuel injectors to restore proper function. If the rough idling persists, seeking professional help for an accurate diagnosis is recommended.