Diesel Place : Chevrolet and GMC Diesel Truck Forums - View Single Post - P0420 code — Cleaning Exhaust Filter — Unable to solve
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Old 02-09-2019, 11:02 AM   #21 (permalink)
Low Boost
Join Date: Oct 2018
Location: Meadview AZ
Posts: 6

over a $100s and hour, like to T/S it before being a fish. To attempt to repair it myself any help?

2012 3500 hd dually LML duramax 4x4 LTZ
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