FLASH: Spark Knock Improvements And Noise Vibration Harshness (NVH) Improvements – 2009 Dodge & Jeep

NUMBER:¬†18-041-08 GROUP:¬†Vehicle Performance DATE: December 16, 2008   SUBJECT: FLASH: Spark Knock Improvements And Noise Vibration Harshness (NVH) Improvements   OVERVIEW: This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM).   MODELS: 2009 (DS) Ram Truck 1500 2009 (WK) Grand Cherokee 2009 (WH) Grand Cherokee (International Markets) 2009 (XK) Commander 2009 (XH) …

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