What Happens When a Three-Way Catalytic Converter Gets Clogged?

1 Answers
StKaden
07/30/25 12:09am
The symptoms of a clogged three-way catalytic converter include: 1. Difficulty in accelerating, with the engine RPM and vehicle speed struggling to increase; 2. Frequent forced downshifting in automatic transmission vehicles; 3. Reduced engine power and excessive exhaust emissions; 4. Engine shaking, illuminated check engine light, and frequent stalling; 5. Continuous rise in exhaust pipe temperature, potentially reaching the ignition point of nearby components and causing spontaneous combustion. Solutions for a clogged three-way catalytic converter: 1. Remove the catalytic converter and soak and clean it with oxalic acid or toilet cleaner; 2. Replace the three-way catalytic converter; 3. Use fuel additives and avoid low-quality gasoline and fuel additives.
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