Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Description & Operation: Notes
The catalytic converter(s) is installed in the exhaust system in front of the muffler so that all exhaust gas must pass through the converter(s). The converter is a stainless steel muffler shopped device that reduces exhaust emissions. There are two types of catalytic converters, oxidation and three-way converters. The oxidation converter contains material coated with platinum and palladium. This catalyst reduces hydrocarbons (HC) and carbon monoxide (CO) emissions. The three-way converters contain material coated with platinum, palladium and Rhodium. This catalyst reduces hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx).
The catalyst may be one of 2 types: a honeycomb-type block that is non-serviceable, or small ceramic beads that can be removed and replaced.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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