How to Clean a Three-Way Catalytic Converter?
2 Answers
Methods for cleaning a three-way catalytic converter: 1. Add cleaning agent to the fuel tank: The advantage is that it is inexpensive and easy to operate. Simply add the cleaning agent directly into the fuel tank. 2. Disassembly cleaning: Disassembly cleaning is a time-consuming and labor-intensive method. It requires completely removing the three-way catalytic converter from the vehicle, soaking it in a cleaning agent for a period of time, and then rinsing it with water. 3. Intravenous drip cleaning: Also known as non-disassembly cleaning, this method uses the intake vacuum suction to draw the cleaning agent into the combustion chamber. After combustion, it creates a high-temperature oxidation environment inside the three-way catalytic converter. Through redox reactions, it converts sulfur, phosphorus compounds, and unburned fuel residues on the three-way catalytic converter into gases like carbon dioxide and sulfur dioxide, which are then expelled through the exhaust pipe. This process aims to restore the activity of the rare metals on the three-way catalytic converter.
Cleaning the catalytic converter depends on your car's condition. Having worked in auto repair for many years, the common method I've seen is using specialized cleaning agents injected through the exhaust port to dissolve carbon deposits. Don't attempt DIY removal - catalytic converters are fragile and you might damage them accidentally! Pay attention to your engine's combustion condition - poor fuel quality or impurities can easily clog the converter's pores. I recommend first testing emission levels and only cleaning if they exceed standards. Otherwise, unnecessary cleaning just wastes money. Professional cleaning equipment is available at repair shops, typically costing a few hundred yuan - it's both economical and safe. Regular engine maintenance and air filter changes can prevent clogging issues, making your car run smoother and more fuel-efficient. Remember, if your catalytic converter is clogged, don't push it - address it promptly to avoid roadside breakdowns. Replacement costs could run you 1,000-2,000 yuan if it gets damaged. Safety first!
