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You’ve probably heard of a part of your car’s exhaust system called the catalytic converter. The catalytic converter is an emissions control device that converts harmful exhaust gasses into water vapor and carbon dioxide.
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If you’re new to auto repair, you might be wondering where the catalytic converter is located. Fortunately, we’re here to answer that question and give you some helpful tips.
Where is the Catalytic Converter Typically Located?
You’ll find one or more catalytic converters located in your car’s exhaust system between the engine and muffler(s). If there’s a catalytic converter located near (or integrated into) the exhaust manifold, it’s often referred to as the “pre-cat”, and the converter located closest to the muffler is referred to as the “main cat”. The pre-cat warms up quickly to improve the efficiency of the main cat.
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Vehicles that have an engine with a ‘V’ or flat configuration often have a catalytic converter (sometimes two catalytic converters) for each side of the engine, meaning the vehicle could have up to four catalytic converters.
When the engine has two banks of cylinders (as in a ‘V’ or flat layout), the catalytic converters located on the side of the engine with the number one cylinder are referred to as the bank 1 converters. The bank two catalytic converters are on the opposite side.
Catalytic Converter Location Diagram
Are you ready to locate your car’s catalytic converter? You’ll find one or more converters located in the exhaust system between the engine and the muffler(s).
Note: This is a generic location diagram. Consult a repair manual or repair database to determine the exact location of your car’s catalytic converter(s).
Tips When Trying to Access the Catalytic Converter
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Usually, the catalytic converter isn’t too difficult to access—especially if it’s located under the vehicle instead of integrated into the exhaust manifold—but it can be difficult to remove.
For example, some catalytic converters are welded into place and must be cut out of the exhaust system. In other instances, the converter might bolt into place but be difficult to remove because its fasteners have become rusted and seized.
If you’re dealing with a bolt-in catalytic converter, it’s a good idea to soak the fasteners in penetrating oil (preferably overnight) before removal. If you find the bolts are still difficult to remove after a good soak, you will likely need to use a propane torch and more penetrating oil (or possibly even an oxy-acetylene torch) to break the fasteners free.
Here’s a helpful video about how catalytic converters work:
You can also check out these videos for tips on how to replace your catalytic converter:
Source: https://t-tees.com
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