Car Problem Reports

Jeep Wrangler Exhaust Manifolds Can Crack Where Pipes Are Welded

Jeep Wrangler Problem
37 Reports
Me Too

Model Years Affected: 1991, 1992, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Exhaust & Emissions Affected: 4.0L 6 Cylinder

Average Mileage: 133,529 mi (68,000 mi - 203,000 mi)


A ticking type noise may be noted from the engine area due to an exhaust manifold that has cracked where the pipes are welded; cracked manifolds should be replaced.

  • Profile_thumbnail

    I bought and replaced a few $300+ headers. The last one I bought was the OEM replacement with the integrated flex pipe. Cheapest and best so far!!!

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  • Visitor, , 194,000 mi

    Replace with stainless steel exhaust manifold

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  • Visitor, , 89,000 mi

    Ticking noise upon acceleration or going up hill.

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  • Visitor, , 84,000 mi

    I have a ticking noise,exhaust manifold seems to have a crack in it ,have already replaced the catalic converter two years ago,I wonder if this is something that jeep would replace for free or am i just screwed,This seems like it shouldn`t happen to a vechical that is being pamperd.I had it from 1998 and drive it very little just now has 84,000 miles,Please help..

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  • Visitor, , 90,000 mi

    New right side manifold. Now starting to leak again.

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  • still have the ticking

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  •  Rookie

    I've had gaskets, cracked manifold replaced, new bolt kit to be installed with new manifold, why do these crack?

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  • Visitor, , 200,000 mi

    manifold leak

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  • Visitor, , 68,000 mi


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  •  Rookie

    I have been dealing with problem for a while, I thought it was low oil or a lifter issue, it wasnt until I was on a forum that I figured it out along with the symptoms. The knocking on start up, quieting down once heated, bad gas mileage, drivability no what it use to be, it seems like the muffler or exhaust was louder in some way. I beleive this also lead to my throttle sensor issues, which inturn on highway speeds, engine would actually mis. Having issues fixed soon will update.

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