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What is the method for cleaning engine carbon deposits?

3 Answers
LawsonRose
08/29/25 6:46am
Cleaning engine carbon deposits involves the following steps: 1. Remove the intake hose to expose the throttle body; 2. Disconnect the negative battery terminal and turn off the ignition switch; 3. Straighten the throttle plate and spray a small amount of carburetor cleaner into the throttle body; 4. Wipe clean using a polyester cloth or high-grade non-woven fabric. Effects of carbon deposits on vehicles: They can cause poor engine performance, leading to issues such as difficulty starting, unstable idling, poor acceleration, backfiring during sudden acceleration, excessive exhaust emissions, and increased fuel consumption. The main components of vehicle carbon deposits are: 1. Metal debris generated from engine friction and wear; 2. Dust from the air; 3. Viscous substances formed from the oxidation, thickening, and acidification of engine oil under high temperatures; 4. Paint film resulting from the oxidation and concentration of lubricating oil.
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IsabelaRose
09/11/25 4:22am
With decades of driving experience, I've dealt with engine carbon buildup extensively. Carbon deposits are residues from incomplete gasoline combustion, which over time can reduce engine power and increase fuel consumption. The simplest method is to regularly use fuel additives—just pour a bottle in with each fill-up, and it gradually dissolves carbon deposits while driving. I also recommend occasional highway driving, accelerating to high RPMs to let the high-speed airflow blow away carbon deposits—it's cost-effective and convenient. For severe carbon buildup, professional cleaning at a repair shop is necessary, such as chemical cleaning or walnut blasting, though these require time and money. Prevention is key; developing good habits can avoid major overhauls.
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DelRobert
10/25/25 5:12am
As an ordinary car enthusiast who enjoys DIY, I often clean carbon deposits myself. Using additives is quite easy – just buy a bottle online and it’s done. A quick drive shows results. But don’t recklessly disassemble the engine, as it’s easy to damage parts and carries high risks. Professional methods like carbon cleaning via IV drip or walnut blasting are more reliable with longer-lasting effects, though they cost more. Daily driving habits matter too – avoid frequent short trips to reduce carbon buildup. For beginners, I suggest starting with additives; if the results are good, stick with it.
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