How to fix code P0420 and replace rear O2 sensor 2008 Jeep Grand Cherokee

First published at 04:18 UTC on June 14th, 2022.
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In this video I replace the rear O2 sensor (bank 1) on a 2008 Jeep Grand Cherokee 3.7 V6. This vehicle has a trouble code P0420 stating the catalyst system efficiency is below threshold (bank 1). Maybe it's a bad cat or maybe it's a bad re…

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CategoryAuto & Vehicles
SensitivityNormal - Content that is suitable for ages 16 and over
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