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17

Ticking Noise Due to Broken Exhaust Manifold Studs on Jeep Wrangler

Problem Description and Possible Solution

The outer exhaust manifold studs can break and cause exhaust leaks, commonly noted as a ticking type noise. The outer studs, clamps, and nuts will need to be replaced and are now being tightened to a reduced torque value (20 Nm/180 in lbs).

Problem Data
RepairPal Verified
Average mileage: 117,581 (45,000–159,287)
Exhaust & Emissions affected: 2.5L 4 Cylinder
8 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1998, 2009
17 people reported this problem
Comments
Viewing 1 - 6 of 6 comments
Replaced exhaust manifold, common crack in old one, only to find rear exhaust manifold bolt was broken. Jeep has had this problem for years now and needs to recall and fix this issue and reimburse those of us who has replaced the cracked manifold for parts and labor!!!
yup actually i own a 1988 jeep wrangler and have had the issue for many years
Start making exhaust leaking noise when cold, goes away when warm. Back stud broken off.
Exhaust has a crack, catalitic converter needs replaced along with the sensors
Been told I have a exhaust leak, sounds like a card in spikes of a bike when cold lose power going up any type if incline.
Front two bolts were gone. Will try to replace them