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Old 12-15-2016, 11:32 PM
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Exclamation JK Clunk noise.

Like the title, My 2015 JK 2dr autotrans suddenly begin make clunk noise after a round road trip between Toronto and Montreal (approx 1200km).The clunk sound happen when I brake, give some gas, let off gas, and shift gear between R and D. Not all the time but most time. This drive me mad....
Anyone have the some experience?
Not I am doubting about the driveshaft U joint, but the stock JK rear driveshaft doesn't have U-joint.
Currently have 87000km on the clock.

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Old 12-15-2016, 11:36 PM
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By the way, I just did the gears and ARB air locker from 3.21 - 4.56 at 74000km. The shop did the in the inspection at 75000km and they said everything fine!

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Old 12-16-2016, 04:52 PM   #3
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Sounds like something is lose like a control arm or shock mount.

Quick way to check is put it in natural and have someone rock it back and forth by grabbing the tire and rolling it a little bit in each direction. Watch each end of the control arms, the shock mounts, swaybar links and track bar for any movement.
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Old 12-17-2016, 12:56 AM
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Problem solved. It is my passenger side rear upper control arm jam nut came lose. After tighten up the jam nut and greased the joint, clunks gone.
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