Originally Posted by hammer1234
Am I reading it correct then that is this a manufacturing defect? Has there been anyone with early 2011 builds that is affected?
Guess I'm a little sensitive because years ago I had a Ford Explorer that developed a cylinder head crack at 15K miles...got it replaced under warranty but it shook my confidence in the long-term reliability of the engine. Got rid of the vehicle at 120K because it was starting to burn a lot of oil and because it was going into the shop every few months for something major.
I have a 2011 JGC that was built in November of 2010, and I have 46,000+. I am the second owner, and bought it when original owner traded it in just before 36,000 mile was to expire. Jeep extended the 100K warrantee to me, as well as my in-laws who have a Pentastar in their Dodge minivan. Neither of these early builds seems effected as of yet. I bought a service contract and have a few thing swapped out, like HVAC blower and a wheel sensor., but nothing major. I was about to do a coolant drain and re-fill using the Prestone ethylene glycol with corrosion protection. apparently all engines that are aluminum allow are having corrosion problems and this is a known trade off for weight and, its why they don't like to put the newer 100K coolant in the engine. If you want to avoid as much problems as necessary flush your fluids on a regular basis, a bit more than recommended in the owners manual. Same for brake fluid and I couldn't find the fluids for 4WD listed with any mileage in the manual, other than inspection, I switched out my differential and transfer case a few weeks back. I will do the transmission at the normal schedule, because tranny problems can be a nightmare. If its not broke, don't mess with it, on most transmission issues.