What is this noise? - JKowners.com : Jeep Wrangler JK Forum
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post #1 of 8 Old 12-14-2015, 06:54 PM Thread Starter
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Location: Lake Lanier, GA
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What is this noise?

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@ times 14, 27, 35, 1:22.
It only comes at 5mph. I took it to the dealer and they said it was somethig in the muffler that has broke off(?) and are replacing the muffler under good will (2012 and just out of warranty). I have never noticed it before, until shortly after I had a new bumper (Smittybuilt) installed. Any ideas??
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post #2 of 8 Old 12-23-2015, 05:30 AM
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There is a heat shield attached to your exhaust just past the transfer case, towards the rear. The spot welds break apart over time, and cause the vibration that you're hearing. The problem is easily fixed with a few hose clamps around the heat shield part, where the spot welds are broken. That's what I did for my '07, haven't heard it since. It's a very common problem.

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post #3 of 8 Old 12-23-2015, 07:15 AM
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^ hes right. My heat shields in the exhaust pipe broke loose and i used pipe clamps to fix it

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post #4 of 8 Old 12-23-2015, 07:10 PM
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That's the same thing I used to ask after I'd pull my dad's finger.

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post #5 of 8 Old 12-31-2015, 06:04 PM Thread Starter
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I will check for that... I'm still going to have them replace the muffler being they said that's the issue (replacing for free!).
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post #6 of 8 Old 12-31-2015, 07:44 PM
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If the new bumper is in the rear check that they didn't install it too close rubbing the body. It happened to me, drove me nuts for months. The dealer never found it. They wanted to change exhaust mounts.

2011 2door

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post #7 of 8 Old 12-31-2015, 07:53 PM
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My muffler touches my new bumper and makes horrible noise, especially when it is cold. Well it did, I took the muffler off a couple hours ago.
I also noticed that the rear heat shield that goes above the muffler was bent and touching the muffler. It is just glorified tin foil so I bent it back. Check that on yours also...
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post #8 of 8 Old 01-01-2016, 05:33 AM Thread Starter
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The new one is on the front. I never noticed this noise until the new bumper was installed. Maybe a coincidence?
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