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International Automotive Technicians Network
Re: GM Knock sensor issues
Posted to Technical Tips Forum on 10/7/2023

I received this email from GM: Reference Number: GCUS-9-15073

Special Return -- Knock Sensor 12589867 ​​Subject

Special Return -- Knock Sensor


Please return all service inventory of Knock Sensor 12589867 (ACDelco 213-3521) built... Login to read more.