What are the symptoms of engine carbon deposits?
2 Answers
Engine carbon deposits manifest as: difficulty starting, unstable idle, poor acceleration, backfiring during sudden acceleration, and excessive exhaust emissions. Engine carbon deposits are a charred substance formed from unsaturated olefins and gum in fuel under high temperatures during engine operation. The hazards of engine carbon deposits include: 1. Reduced power and increased fuel consumption; 2. Engine knocking; 3. Increased engine noise. Methods to prevent carbon deposits are: 1. Use high-quality gasoline; 2. Avoid prolonged idling; 3. Drive at high speeds more often and try to increase the shift RPM for manual transmission vehicles; 4. Pay attention to the timing of shutting off the engine.
I remember when I was younger and driving, the symptoms of carbon buildup in the engine were particularly noticeable: the power would suddenly become sluggish, like dragging a heavy load uphill; fuel consumption would skyrocket, where a full tank used to last 500 kilometers, but later it wouldn't even reach 400; cold starts became difficult, especially in winter, requiring multiple attempts to get the engine going; at idle, the engine would shake violently, making the car vibrate as if it were dancing; the exhaust would become thick and black, with a noticeable odor while driving. Ignoring it could lead to bigger problems, like engine overheating or stalling. Now, I maintain regular servicing, use high-quality gasoline and additives, and the car's condition has improved significantly. Old-timers often say that short trips are more prone to carbon buildup, while more highway driving helps alleviate it.
