Jeep
Grand Cherokee
1

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

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: (–)
Engine affected: 5.7L V8 HEMI
1 model year affected: 2009
1 person reported this problem