Ticking Type Noise From Exhaust Manifold Area on Jeep Commander

Problem Description and Possible Solution

3.7 V6 and 4.7 V8 engines may develop exhaust leaks due to broken exhaust manifold bolts. Exhaust manifold gaskets and bolts should be replaced as necessary.

Problem Data
RepairPal Verified
Average mileage: 88,794 (7,200–200,000)
Engines affected: 3.7L V6, 4.7L V8, 5.7L V8 HEMI
5 model years affected: 2006, 2007, 2008, 2009, more2010
129 people reported this problem
Viewing 1 - 20 of 85 comments
Our Commander developed a weird puttering noise when accelerating if the engine was cold. Gas fumes would be prominent in the cabin during this time. After a few minutes the engine would warm up and the noise and smell disappeared. A little bit of researched suggested an exhaust leak and this problem with the bolts.

The local shop confirmed the problem. Four bolts, two on each of the read banks, needed to be replaced. The cheap thin bolts used by Jeep were to blame. The location of the struts make it a rather difficult job. Part of the exhaust and transmission needed to be dropped to facilitate the repair. Had this failed, the engine would have needed to been dropped.

I requested higher grade bolts be used, hopefully reducing my odds of this happening again. The repair came in around $600.

Spoke with Jeep Customer Assistance Center. They will not assist in the repair due to the sage and mileage for my vehicle and are shrugging it off. The rep said that this repair would be covered under their 3 year/36,000 mile warranty. They said all complaints get put into a database at corporate headquarters which could then be used for a recall. If you haven't already, please contact them at 877-426-5337. Jeep needs to hear directly from the consumers.

Note: If anybody is told by Jeep that they've never heard of this problem, my case number is #22294684. May not be a bad idea for people to post their own in the future.
I can see that there are two broken bolts that needs to be replaced the exhaust leak is pretty bad. it's a shame that all these people have to pay for their mistakes. I'm looking into a class action lawsuit against Jeep corporate.
report the jeep issue to the center of auto saftey. read up on the auto lemon laws. this is very unsafe.
Self diagnosed, heading to the dealership tomorrow. If this problem is so common, I feel the manufacturer is at fault.
Two broken manifold bolts. Warped manifold. Also broken front bushing mount. At dealer now $1169.
45000, 80000, now 135000 miles. Always at the back of the engine. Replaced drivers side twice, now the passenger side has broken. Obviously they're too small for application. I had never seen 5/16 diameter until this engine! Typically 3/8 diameter. Well you can't tap the block out bigger, you just have to keep replacing. Honestly this has been a great vehicle for us, my wife loves her commander. That's why we're still driving it at 135000. If they made it again we would buy one. Tows my boat and snowmobiles and has allot of room inside. No idea how they thought the 4 door jeep wrangler could take it's place without a v8 option. Sorry a Durango is not a replacement either. Just my opinion!!
Same issue with bolts breaking to cause the manifold to warp and leak. 3,000 miles ago we had the 'left' side replaced entirely ($425+), however there was no mention of the potential that this would happen anywhere else. Not being a car guy (or doing my own due diligence I suppose...), I was not aware that there were two manifolds that may need replacing. Very disappointing that the dealer did not mention this (wishful thinking, I know), or that we could replace the bolts on the right side relatively inexpensively prior to the manifold itself needing to be replaced. Result: another $425 bucks donated to Jeep/Chrysler/Dodge. Continue to be disappointed by Jeep/Chrysler/Dodge, unlikely they will get any more of my business. My tax dollars already went to bail them out, the least they could do is make up for the piles of shit they made in the mid-2000s.
Noticeable exhaust noise, especially when first cranked and on acceleration. Mechanic said that all 4 bolts are broken, and it will require the removal of the entire engine to replace them.
Broken bolts on both exhaust manifolds. This issue was fixed once before by the dealership {$800}... This time I will do it myself. I'm halfway through the repair and it is a pain. The process is long with poor access to the hardware, but is possible to do without removing the engine.
Pull-downs prevented entering correct info: 2005 Jeep Grand Cherokee Limited 5.7L Hemi with 81,000 miles. Same broken exhaust manifold bolts as described in all these post for all engine variations. It will cost $2,200 at the dealership for just one side. Waiting for the estimate to do both side. On a WK there is no clearance and it requires removing the heads. 8-10 hours of labor plus parts. I have searched everywhere for stronger, better quality bolts - are any known available?

Any help appreciated - at the dealership now.

Ed Jones
Commander USN (Ret.)
This is my third time having exhaust issues from cracked manifold to a sheared off bolt.

Called jeep and they won't do anything about it. Here is my complain number, please call so we can get this well documented: #30781582
We have a 2006 Jeep Grand Cherokee Limited. We noticed a ticking sound when first starting up the vehicle but it quieted down after the engine warmed up. From outside the vehicle it sounded like the noise was coming from underneath, like maybe exhaust pipe or something...but not from the engine itself. After about a week we took it to our service center; they put it up on a lift and identified a crack in the exhaust manifold. The mechanic said it could be quite costly to repair because of the problem with bolt breakage which would then require pulling the engine. He said that was a well documented problem with jeeps & some other Chrysler products. After researching it, I see that he is right. What worries me too is the post about potential fire because of location & heat leakage. We don't know what to do now; we are the original owners & have kept the vehicle well maintained. We only have 95,000 miles on it. Chrysler just finally fixed the ignition switch issue that was on recall for years. We will definitely report this problem as suggested. Very disappointed as we have been Jeep owners for 20+ years.
Driver side exhaust manifold bolt is broken, still attached to heat shield. This problem should be recalled.
Theres a ticking sound, an obvious exhaust leak coming from the passanger side of the engine. I took my commander to a mechanic, he told me that the bolts to my exhaust manifold broke. I have not fixed it yet, the issue started not too long ago.
I've had it repaired twice by dealer under warrenty. After warrenty my independent mechanic told me to "live with it" since it is just going to happen again.
Bolts have broken. Jeep covered it the first time on a recall. The last two times I haven't had it repaired. I felt they should have been warrantied as it's a known issue. Jeep dealer did not.