What Are the Effects of Excessive Carbon Deposits in Cars?
2 Answers
Here are the effects of excessive carbon deposits in cars: 1. Poor acceleration. Carbon deposits reduce the intake channel and lower the charging coefficient, leading to increased cylinder pressure and delayed ignition timing, resulting in decreased engine power. 2. Difficulty in starting the vehicle. Carbon deposits falling into the intake valve seat channel can cause insufficient cylinder pressure. The fuel injected during startup is absorbed by the carbon deposits, leading to a lean mixture in the cylinder and preventing the engine from starting normally. 3. Unstable engine idle. When carbon deposits adhere to the intake valve and throttle valve, the engine cannot accurately control the amount of gasoline and air sent to the combustion chamber, causing unstable engine speed. 4. Increased fuel consumption. When carbon deposits accumulate in the combustion chamber, they can easily cause knocking, leading to delayed ignition timing, decreased power, and a 4~5% increase in fuel consumption. 5. Excessive exhaust emissions. Carbon deposits disrupt the gasoline-air mixture ratio, causing incomplete combustion of gasoline, increasing CO and HC content in the exhaust, and failing to meet emission standards. 6. Engine failure. When carbon deposits adhere to the intake valve stem, they can cause the valve stem and guide to stick, leading to piston impact on the valve, abnormal engine noise, and damage to the intake valve and piston.
When driving, I feel the car is getting less powerful, accelerating sluggishly, and fuel consumption has increased significantly. This is mostly due to carbon deposits. When carbon deposits accumulate in the engine, combustion becomes incomplete, leading to reduced power. Cold starts become difficult, and the idle speed shakes noticeably, making driving quite unpleasant. I remember my previous car, which I neglected to maintain for half a year, had severe carbon buildup. It cost me over 800 yuan to clean the throttle body, not to mention the wasted time and fuel costs. Now, I regularly use fuel additives and take the car for a high-speed run every month to help the engine clear out carbon deposits, saving me a lot of trouble. Ignoring carbon deposits can also affect emissions, which is bad for the environment. So, don’t overlook these small details. Timely maintenance benefits the car greatly, making driving more comfortable and giving peace of mind.
