Spark Knock, Noise/Vibration/Harshness, and/or Check Engine Light Issues on Jeep Commander

Spark knock, noise/vibration/harshness, and/or Check Engine Light issues may develop. Our technicians tell us powertrain control module (PCM) software upgrades may correct these concerns.

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Average mileage: 129,666 (98,000–159,000)
Engine affected: 3.7L V6
3 model years affected: 2006, 2008, 2009
4 people reported this problem
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