Here are the 10 commandments of a catalytic converter replacement handed down from the EPA.
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Catalytic converter replacement is easy – it is the ordering and associated paperwork that can be difficult.
If you are the kind of technician who solves emission codes by replacing parts and hoping the check engine light does not come back on, this article is not for you. But, if you want to diagnose a emissions-related problem, confirm the fix, and know when the car leaves the shop the job will be completed, this article is for you.
1974 saw the first catalytic converters placed on vehicles and the use of unleaded gas. While Chrysler went with biscuits, GM, Ford and AMC went with beads. The beads were designed to be serviceable. With special tools, the platinum-covered beads could be removed through a hole and replaced with fresh beads if the owner poisoned the converter with leaded gas.
These are the beads that were in the converter. If the converter was damaged internally, the beads might escape out the tail pipe.