Okay, I'm convinced I have a crack in my exhaust manifold. When I fire up the Wrangler TJ, cold, it clicks. When I press the gas, the clicking gets quicker. After the engine has heated up, the clicking stops.
Of course, this started a few months ago and now the clicking noise is getting louder (read: more annoying). I cannot find a crack or hole in the manifold on a visual inspection, but I'm positive this is the problem. My question: before I take the leap and buy a new manifold, does anyone have any other suggestions? Does this sound like a manifold problem, or has anyone had a similar experience?