general problems of the 2012 Jeep Wrangler

Really have 3 issues with this vehicle. The first is that the engine began to tick noticeably at around 5000 miles, sound definitely coming from #2 cylinder. Was initially told not to worry, noise was normal, oddly it did not tick previously. The short story is that it set a p0302 code at around 12,000 miles. Chrysler did not authorize a rental and the dealer was less than cordial. They put the thing back together and damaged an emissions valve, so more delay. Get the vehicle back, ran silent for 2,000 miles, the tick is back. Now at 19,000, no code yet, but I fear its coming. Problem #2, exhaust smell, get it nearly all the time, especially under load, no resolution yet. Problem #3, wet carpet on drivers side, no resolution yet. Oh, I forgot to mention, there is a fourth, I have just installed the third windshield in less than 6 months. Its not the quality of the glass, its the steep angle of the windshield, but that's what you get when you buy a Wrangler. I have been loyal to us brands, this is our 32nd new vehicle, won't by a Wrangler again.