Nothing wrong with it. Just going with bigger horsepower and trying to sell it. New engine going in as we speak. It's perfect for those who have 3.8 or 3.6. Drives and pulls like a jeep should. Sounds great with a flow master exhaust. I 've only put 33k miles on it but wanted to go with bigger power.
Engine from a 2008 Grand Cherokee with 700 miles on it. Installed by AEV. I put 33k miles on it. Has run strong with no overheating issues at altitude in Durango, CO where my home is. It's a great engine just wanted to go bigger.