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

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 126,053 (98,000–159,000)
Engine affected: 3.7L V6
4 model years affected: 2006, 2007, 2008, 2009
11 people reported this problem
Viewing 1 - 2 of 2 comments
Having a loud knocking noise when turning on or stepping on gas when in park or at red light noise is still there but not as loud or knocking fast
bought it used has had a vibration in drive train since i bought it have tried fluid and filter change in trans. didnt help still have same vibration