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Re: Slow 02 response 2013 Silverado 5.3 4X4
Posted to Technical Discussion Forum on 1/24/2020

Bradley, I have a theory why the 02 heater monitor did not run today. Several years ago I reviewed an article that said when replacing the 02 sensors, on late model GM vehicles, there is a relearn procedure for the PCM to know the resistance value of the new s... Login to read more.