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Old 01-31-2013, 01:18 PM   #1
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Loud obnoxious rattle from my 2005

I have been hearing a rattling noise coming from the undercarriage of my 2005 Wrangler Sport for a few weeks now. I thought, after reading some of the other posts here, that I might be experiencing the heat shield rattle that many have had, but I'm not sure now.

I was recently in a drive through and I took it out of gear so I wouldn't have to keep holding the clutch, but I noticed that when I applied the clutch, the rattle stopped. Granted, when it sits and idles the rattle is faint at best, but I did notice that it stopped completely when the clutch is pushed in.

Usually the rattle is loudest when I am in first gear, getting ready to shift to second, or when I am coming to a stop. When I get past second gear the rattle goes away.

As I said, the rattle is only faint when sitting still and much louder when I am in a low gear and moving slowly.

I plan to crawl up under it this weekend to check out the heat shield, but is there something else I should look for? I am no professional mechanic, but I'm not afraid to try to fix something myself as long as I know I have the necessary tools on hand.

By the way, just for information, my TJ has 4.0 6-Cyl. with a six-speed manual tranny. No lifts or suspension mods. Yet.

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Old 01-31-2013, 01:28 PM   #2
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I also have a 2005 sport with a 4.0 and 6 speed gearbox and a rattle that is similar to your description. I've never thought of it enough to remember to post about it, so this is relevant to my interests. My name is Bryan, too. Weird. Lol.

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05 TJ Sport build thread: My orange wallet lightener

Wife: "Did you pull through this parking lot just to look at another Jeep?"
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Old 01-31-2013, 01:31 PM   #3
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Too cool!!! Yeah, I hope somebody can help. This rattle is friggin' annoying.
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2005 Jeep Wrangler Sport
1982 Datsun 280ZX
All right. I warned ya'. Move that rice-burner or I go Jeep all over your a$$!
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Old 01-31-2013, 01:34 PM   #4
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throwout bearing could be going bad...how many miles do you guys have on your jeeps?
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You can lock it..even put a different t/c in it..but its still not a RUBICON!
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Old 01-31-2013, 01:38 PM   #5
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103k for me.
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05 TJ Sport build thread: My orange wallet lightener

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Old 01-31-2013, 01:55 PM   #6
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68,800 for me.
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Old 01-31-2013, 02:30 PM   #7
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It's the front input bearing.
Easy to fix. But have to take the trans out.
Don't have to the trans apart.

There is a cover in the bell housing, remove it and the bearing is right there.
I had to go to the dealer to get the bearing.
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Old 01-31-2013, 02:35 PM   #8
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How many miles on the tires? The reason I ask is I always had a bad vibration and rattle at low speeds, leaving from a stop and stopping. Turned out to just be my tires that were worn out. Got new ones and its all gone.
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Old 01-31-2013, 02:55 PM   #9
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Originally Posted by tailhole View Post
It's the front input bearing.
Easy to fix. But have to take the trans out.
Don't have to the trans apart.

There is a cover in the bell housing, remove it and the bearing is right there.
I had to go to the dealer to get the bearing.
That's good to hear. What's the cost for the bearing and about how long did it take you?
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Old 01-31-2013, 02:56 PM   #10
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Tires only have 13,000 miles on them. They are still in good shape. Goodyear Wranglers.
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Old 01-31-2013, 03:16 PM   #11
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I have the same noise with my six speed. Also it pops out of 1st gear from time to time
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Old 01-31-2013, 04:02 PM   #12
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My '98 4.0 Auto has a fun undercarriage rattle, too...it happens when I'm idling in drive (stops if I shift to neutral) and louder for the first few seconds of accelerating from a stop. And it doesn't always happen - maybe 60% of the time. It's on my to-do list to get it fixed.
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Old 01-31-2013, 06:01 PM   #13
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My tires have less than 100 miles on them right now. Mine only does it when I'm stopped and in neutral, not holding the clutch in. I'll add front input bearings to my list. The list grows quickly, doesn't it?
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05 TJ Sport build thread: My orange wallet lightener

Wife: "Did you pull through this parking lot just to look at another Jeep?"
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Old 01-31-2013, 09:47 PM   #14
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When they get "Loud and Obnoxious".................I leave the Bitch at home....but that's just me
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Old 02-01-2013, 08:24 AM   #15
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Paying a little closer attention to it this morning as I was pulling out of the parking lot. It seems that it does rattle on occasion when the clutch is pushed in, but only if it's rolling. Not if completely stopped. Not as loudly, but it still rattles if I am cruising at 5 to 10 mph with the clutch pushed in and if I slow down by applying the brake or if I roll over a speed bump. Basically any small action that bounces or lurches.

Trying to narrow it down as much as possible.

I also noticed this morning that it didn't rattle quite as much as it normally does. It is quite a bit cooler than normal (41 degrees), versus the normal 70+ degrees. Could the cold be a factor?
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2005 Jeep Wrangler Sport
1982 Datsun 280ZX
All right. I warned ya'. Move that rice-burner or I go Jeep all over your a$$!
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Old 02-01-2013, 09:11 AM   #16
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The 6 speeds that I have fixed you can hear it out of gear with the clutch out. And when the trans is hot. When you push the clutch in it quits.

Sounds like a box of marbles rolling around.
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Old 02-01-2013, 09:32 AM   #17
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When they get "Loud and Obnoxious".................I leave the Bitch at home....but that's just me
Hey Paul, this isn't RDP
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Old 02-02-2013, 12:06 AM   #18
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Hey Paul, this isn't RDP
way too serious around this place

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