What are the methods to remove engine carbon deposits?
2 Answers
Methods to remove engine carbon deposits include: 1. Remove the engine cover, take off the throttle valve, clean it with carburetor cleaner, wipe dry with a cotton cloth and reinstall; 2. Open the oil filler cap, pour in the entire can of cleaner, close the oil cap, start the engine and let it idle for 10 minutes before shutting it off; 3. Add the entire bottle of fuel additive to the fuel tank before refueling; 4. Pour the intake system cleaner into the storage tank of a dedicated cleaning device, connect it to the intake system, and start the engine to use vacuum to draw the cleaner into the intake pipes for cleaning purposes. Carbon deposits refer to sludge-like viscous substances formed when fuel and engine oil vapor entering the combustion chamber cannot be completely burned. These deposits accumulate continuously on components such as intake/exhaust valves, spark plugs, fuel injectors, and piston tops, and under repeated high-temperature conditions in the engine, eventually form carbon-like deposit substances.
I used to clean carbon deposits myself, and the method was quite simple: add a bottle of fuel additive before each refueling to dissolve carbon deposits in the fuel system; occasionally drive on the highway at high RPMs above 3000 to burn off stubborn residues; when carbon buildup is severe, visit a professional shop for intake valve cleaning—methods like walnut shell blasting or dry ice cleaning are effective. Prevention is more important: I use high-quality engine oil and change it regularly, avoiding prolonged idling to reduce carbon buildup. Unremoved carbon deposits can cause engine vibration, skyrocketing fuel consumption, and sluggish acceleration. These steps keep the car running smoothly and give peace of mind while driving.
