How to Clean Carbon Deposits from the Engine at a 4S Shop?
2 Answers
4S shops clean carbon deposits from the engine using the following methods: 1. Remove the engine cover, take off the throttle body, clean it with carburetor cleaner, dry it with a cloth, and reinstall it; 2. Open the oil cap, pour in the entire can of cleaner, close the oil cap, start the engine and let it idle for 10 minutes before turning it off; 3. Before refueling, add the entire bottle of fuel additive to the fuel tank; 4. Purchase a bottle of intake system cleaner, pour it into the storage tank of a dedicated cleaning device, connect it to the intake system, and start the engine to allow the vacuum to draw the cleaner into the intake passages. Engine maintenance methods include: 1. Use high-quality engine oil; 2. Use qualified coolant; 3. Regularly clean the radiator scale; 4. Periodically remove carbon deposits from the car; 5. Replace the car's three filters on time; 6. Maintain a reasonable engine speed.
Last year, my car had run tens of thousands of kilometers and felt sluggish during acceleration, so I specifically went to the 4S shop for carbon deposit cleaning. The technician first conducted a comprehensive inspection, used a diagnostic tool to check the data, and then decided on the method. Generally, a chemical cleaning agent is injected into the fuel system to dissolve the carbon deposits, combined with physical high-pressure air blowing. The entire process takes about two hours, with some parts removed but not completely disassembled to ensure safety and cleanliness. After the cleaning, the car instantly became more responsive, and fuel consumption dropped a bit. The advantage of the 4S shop is its advanced equipment and professional technicians, ensuring more thorough cleaning and longer warranty periods, unlike small repair shops that might cut corners. It's recommended to check every 20,000 to 30,000 kilometers to avoid turning it into a major engine problem. Spending the money is worth it.
