Glad to be a Jeep owner, I think....
I bought a '06 Wrangler 2.4L w/ 69K miles on it. Man, this thing has been nothing but problems in the 3 months Ive had it.
First had to have the gas tank replaced for shooting gas out the filler neck when filling up, dealership covered that 100%. The dash cluster was replaced for no headlight chime, no interior lights coming on when the door was opened, this also fixed numerous other little problems.
The the big one hit. The engine shot the #3 spark plug right out of the head. YES, SHOT IT OUT! Dented the hood from underneath and everything. Stripped the threads right out of the head. So after a two week stay at Hotel Jeep Dealer and $2000 later I have a new cylinder head, new timing belt, new plugs, and new PCM (that took a crap while in their possession). I hope that's all the problems I have for a long time.