Well I will admit that there are tons of fans of the Jeep 4.0. But I don't see it as the legendary bullet proof engine that it's made out to be. We've had 2 Cherokees and a Wrangler with the 4.0 and they were all done before 200K. Maybe that's a lot to ask of one. But as far as inline engines go I like the Ford 300 inline.a lot better.They stopped making JEEP Wrangler in 2006 . That was the death of the 4.0 . All junk now .
But there must be something to them old 4.0 Cherokees. Both of our mail carriers still dri e them and I believe they quit making them in 01.