What are the symptoms of carbon buildup in a car?
2 Answers
Symptoms of carbon buildup in a car include the following: 1. Difficulty starting the engine when cold, requiring multiple attempts, while it starts normally when warm. 2. Unstable engine idle speed, fluctuating between high and low. 3. Poor acceleration response when revving, with a noticeable sluggishness. 4. Reduced driving power, especially noticeable during overtaking, with slower acceleration and failure to reach the car's original power level. 5. Highly irritating and pungent exhaust emissions, significantly exceeding standards. 6. Noticeably increased fuel consumption compared to before. Carbon buildup reduces engine power, increases fuel consumption, and in severe cases, can cause valve sealing issues. Treatment methods include the following: 1. Carbon buildup in the intake tract can be cleaned during maintenance at a repair shop. 2. If not severe, driving at high speeds can also help remove carbon buildup, as the high-speed airflow can wash away carbon deposits in the intake tract. 3. Adding fuel additives, such as products like "fuel system cleaners," can help keep the fuel cleaner and also clean existing carbon deposits while slowing down their formation.
Carbon buildup is no small matter, and drivers should watch out for these obvious symptoms. First, cold starts become particularly difficult—the ignition takes several seconds, as if the engine is throwing a tantrum. At idle while waiting at a red light, the steering wheel and seats shake noticeably, like a phone vibrating. When accelerating, the throttle feels sluggish, especially on uphill stretches where it struggles the most. The most painful part is the sudden spike in fuel consumption—last month, I spent nearly 200 yuan more on gas. The exhaust also starts smelling pungent; last week, my neighbor joked that my car sounded like a tractor. If you notice these signs, address them promptly—otherwise, engine damage could cost you dearly.
