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Old 10-24-2010, 05:17 PM
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Odd knocking from rear

New here. So please go easy on me.

I got an '05 TJ I bought last month for 14k, as my daily driver. It's on 33s, 2.4l 4 banger with a 6 speed. Lately I noticed a weird sound coming from the rear, near the gas tank. The thing is that it only occurs when I go over a bump. Or if I stand on top of the rear bumper and jump up and down (). Any possible clues as to this?

Also, one other issue. I randomly notice that I can't throw it into first gear on the first shot sometimes. I'll go to put it in and it'll go up about halfway but feels like I'm hitting a wall. Usually solved by taking clutch out and putting it back in and trying again.

Heres a pic of it just for random reference.



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Old 10-24-2010, 05:36 PM   #2
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The rattle is likely the muffler banging. Grab it when it's cool and shake it, see if it's banging on something. No clue about the clutch issue.

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Old 10-24-2010, 05:41 PM
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What would the muffler be banging on? And any chance you would know on how to fix it?
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Old 10-24-2010, 05:46 PM   #4
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First, as said, get under the jeep and move it by hand to see if you can replicate the sound and where it may be coming from. Check the shocks to see if you have a broken shock or mount. Check the rear control arm mounts also.
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Old 10-24-2010, 05:51 PM   #5
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Do you have a trailer hitch? My tail pipe would hit the hitch occasionally, or it could be the muffler itself hitting the heat shield, or lots of other places.
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Old 10-24-2010, 06:29 PM
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Figured it out. There's a rubber piece on the top of the shocks where it goes onto the frame. It wore out. Looks like just the rear shocks have to be replaced.

Still no idea on the shifting into first gear issue.
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Old 10-24-2010, 09:15 PM   #7
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im not sure that it's an issue. sometimes manual transmission are just like that.
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Old 10-25-2010, 08:11 PM   #8
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Figured it out. There's a rubber piece on the top of the shocks where it goes onto the frame. It wore out. Looks like just the rear shocks have to be replaced.

Still no idea on the shifting into first gear issue.
Got the same issue with the Shocks in the rear. I can move them around freely by hand. Looks easy to replace them though.

From my experience the shifting into first is often a problem with manuals, mainly while you are still moving. However climb underneath and check your fluid, usually if shifting becomes rough it means you are running low on fluid. Your manual will show the location where to check it.
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Old 10-25-2010, 08:39 PM
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Got the same issue with the Shocks in the rear. I can move them around freely by hand. Looks easy to replace them though.

From my experience the shifting into first is often a problem with manuals, mainly while you are still moving. However climb underneath and check your fluid, usually if shifting becomes rough it means you are running low on fluid. Your manual will show the location where to check it.
Sounds good. Just need to get the belly-up off ><
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Old 10-25-2010, 08:54 PM   #10
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I had a Subaru Impreza WRX that wouldn't shift down in to first at anything faster than five mph. In the Jeep, I double clutch all my downshifts out of habit, so it goes in to first smoothly pretty much most of the time.

Guess that's just how they are =\

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