2013 Subaru 2.5L - How To Diagnose/Replace Clogged Catalytic Converters

This video will show how to diagnose/replace clogged catalytic converters on a 2013 Subaru 2.5L Outback with no power. https://amzn.to/3zkFvsn

This video also covers how to replace the main catalytic converter as well as how to replace the rear catalytic converter.

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You will see how to test for clogged exhaust systems using only a vacuum gauge. There are many videos that show using a scanner and all sorts of unreliable methods. You will see how to test both catalytic converters as well as how to replace and fix the issue.

Often, when a 2013 Subaru 2.5L Outback with a CVT Transmission, seems like it isn’t shifting correctly, you can relate it back to the engine not running correctly. Discover how to diagnose clogged catalytic converters quickly to save yourself a lot of time and money.

This 2013 Subaru 2.5L Outback never gave a code to indicate what the issue was. It had a few shops totally baffled due to trying to use an OBD2 Scanner instead of going back to basics using a vacuum gauge.

When the exhaust system or catalytic converters become clogged, the back pressure goes back into the engine. This causes the engine’s vacuum to decrease, and you’ll see how the manifold vacuum becomes unsteady and causes the gauge to shake.

Before you spend a lot of money in parts you don’t need or diagnostic time, when your 2013 Subaru 2.5L Outback has no power. Do this simple and easy test first to learn how to diagnose clogged catalytic converters. This should cover 2013 to 2016 Subaru Outback and Forester.

Note, this 2013 Subaru 2.5L Outback has two catalytic converters. The main one is the header pipe converter that comes right off the engine. The second one is called the rear catalytic converter and looks more like a resonator.

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