Jeep Wrangler Problems

Ticking Type Noise Due to Cracked Exhaust Manifold on Jeep Wrangler

Problem Description and Possible Solution

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.

(48 people reported this problem)

Jeep Wrangler Vehicles With This Problem

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Average mileage: 127,000 (68,000–203,000)
Exhaust & Emissions affected: 4.0L 6 Cylinder
18 model years affected: 1991, 1992, 1993, 1994, more1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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Viewing 1-17 of 17 comments
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..
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!!!
I've had gaskets, cracked manifold replaced, new bolt kit to be installed with new manifold, why do these crack?
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.
Heard a slight ticking noise, thought it was lifters so I had them all replaced still heard ticking. I started looking around and found crack in manifold. Now researching best way to fix it.
when I start my vehicle ( 2001) jeep wrangler sport it has a ticking noise but goes away eventually
Stock manifolds on both sides are cracked.. One from lower flange up through middle approx 4 inches long.. Passenger side has a 2 inch crack in same place