Hello all, I am new to this forum. I bought a 09 jk about a year ago and have had troubles with it almost the whole time. After 400 miles my catalytic convertor went bad. I had that replaced and recently after 18,000 miles my transmission was replaced. It would contstantly pop out of 1st gear. Now the motor has a bad valve ping and just makes wierd noises when I shift gears. Seriously my jeep sounds like it has a 150,000 thousand miles on it and only has 23,000 now. I love my jeep, but this shit seriously irritates the hell out of me when I buy a new vehicle and have these problems. My question is, has anyone else had any problems like this?