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Old 02-29-2012, 01:20 PM   #1
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2012 new jeep noises

Hey all

new to these here forums..
new jeep owner and i have a question...


love my 2012 2door sport however i notice a a bit of a"thunk " sound when i reverse or put gear into drive.. the dealer said they couldnt find any problem and the brakes are fine...

usually backing out in reverse when i press the brake i hear a slight grinding/ thunk sound and and briefly when i put it into drive...

its an automatic...

has any one had this issue and should i be concerned?


only have 900 miles on it so far..
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Old 02-29-2012, 01:22 PM   #2
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Window pillar? Been known to clunk.

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Old 02-29-2012, 01:22 PM   #3
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Oh its the wrangler sport of course.
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Old 02-29-2012, 01:23 PM   #4
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Window pillar? Been known to clunk.
what is that?
LOL
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Old 02-29-2012, 01:23 PM   #5
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i notice the sound in rear tire area , specifically left side
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Old 02-29-2012, 01:24 PM   #6
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I have a 2012 Wrangler Unlimited Sport and I have the same "thunk" sound when switching to reverse. Its especially load when the engine is cold.
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Old 02-29-2012, 01:27 PM   #9
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I have a 2012 Wrangler Unlimited Sport and I have the same "thunk" sound when switching to reverse. Its especially load when the engine is cold.
interesting, thanks..

when I drove another 2012 jeep i heard the same noises cept not as often...sounds like its no big deal then and just part of the build of the jeep?
Its my 1st wrangler and im quite attached to it..LOL

hope nothing is wrong with it
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Old 02-29-2012, 01:29 PM   #10
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I still have an unexplained "clunk" from the
Front.

I think it's the body flexing.
sounds reasonable.

do u think over time it will stop?

i know wranglers are one of a kind so i know to expect things like this..
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Old 02-29-2012, 01:51 PM   #11
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Quote:
Originally Posted by SonyBoy
sounds reasonable.

do u think over time it will stop?

i know wranglers are one of a kind so i know to expect things like this..
You are right. Just one of those little quirks
of a wrangler

Would not worry too much
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Old 02-29-2012, 01:52 PM   #12
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Make sure the jack is secured.
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Old 02-29-2012, 02:13 PM   #13
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Make sure the jack is secured.
good point, i dont think its that tho because the sound comes from under the wheel well...
i appreciate the feedback every body
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Old 02-29-2012, 02:29 PM   #14
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Quote:
Originally Posted by SonyBoy

good point, i dont think its that tho because the sound comes from under the wheel well...
i appreciate the feedback every body
Also check the flares are tight. Sometimes the clips come loose and they can move around.
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Old 02-29-2012, 03:35 PM   #15
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I had an S2000 years ago that would thunk as soon as you started to back up. Took forever to figure it out, but the castle nuts on the ends of the axle would shift over just a little against the stakes with the change in direction.

It never caused any issues and didn't seem to be at risk of coming loose but it bugged me so I replaced the stake nuts and never heard it again.

I'll bet that is what you have going on, especially if the sound is only coming from one corner of the Jeep. Does it happen with the tires off of the ground?

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