If you own a Jeep with a 4.0L engine, chances are pretty good that you either have, or will have, a cracked exhaust manifold. Oft-cited causes range from bad motor mounts to poor factoryprocesses.

Ken Secord has owned this Jeep for many years. It was slowly built over time, and then rebuilt a few times after that. He purchased the ’88 YJ Wrangler in 1991, and it’s since followed him on moves ...