What are the effects of carbon deposits in sedans?
2 Answers
The effects of carbon deposits in sedans include: 1. Reduced engine power, body shaking at idle, loud engine noise, blue exhaust emissions, and failure to pass annual inspections, making the vehicle undrivable; 2. Difficulty in engine ignition and potential damage to internal engine components. Carbon deposits encompass two concepts: 1. A coking-like substance formed from unsaturated olefins and gums in fuel under high temperatures during engine operation; 2. Carbon deposits in electrical discharge machining, which should be avoided as much as possible, especially in precision mold processing, where they can have fatal effects.
As a driver with over 20 years of experience, I've personally experienced the effects of carbon buildup in cars several times. First and foremost, the most annoying part is the noticeable increase in fuel consumption. What used to be a full tank easily covering 500 kilometers now barely gets me 400, meaning more frequent trips to the gas station. The power output also weakens significantly; during acceleration, it feels like the engine is just spinning without delivering power, making overtaking difficult and even small inclines more challenging than before. Idling becomes rough with severe vibrations, creating an annoying hum inside the car—so much so that waiting at a red light becomes uncomfortable as you can't even sit still. Excessive carbon deposits also lead to cold start issues; in winter, the engine makes creaky noises upon ignition, sometimes requiring multiple attempts to start. After cleaning the fuel injectors and throttle body at the repair shop, the improvement is immediate. I recommend checking the engine every 20,000 kilometers or regularly taking the car on highway drives to clear out carbon deposits. This practice can extend engine life, save fuel, and reduce headaches.
