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Old 03-14-2012, 05:06 PM   #1
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4wd problems..?

So I recently bought a 2005 tj and like an idiot did not really mess with the 4wd ( in my defense I was anxious to get the jeep before others did) I drove it off the lot today... Drives like a dream... But the I got to a parking lot and decided to test the 4wd to see what it was like... So here's my problem... I can hear it engage, the light on the dash comes on... But when I moved it made a crazy noise and got jumpy... It does, however, go. So I took it back out of 4wd drive and now my clutch makes audible noises and my stick rattles...

Without stating the obvious about me being a car buying newb... Any thoughts?
Could the 4wd just have been frozen? Or need some sort of lubricant?

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Old 03-14-2012, 05:15 PM   #2
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You didn't try to turn with it on pavement did you? That's a no no.

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Old 03-14-2012, 05:56 PM   #3
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Wow that is exactly what I did... Did I break my jeep? :'(
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Old 03-14-2012, 06:06 PM   #4
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Quote:
Originally Posted by CrackrJack
Wow that is exactly what I did... Did I break my jeep? :'(
Possibly. I would take it to a mechanic. Sorry to be the bearer of bad news it may be okay it may not. But by the symptoms you said you may have damaged a few parts. The 4wd system of a wrangler is not meant for dry pavement. I would look at the tcase front driveshaft and front axle first. Then go from there.
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Old 03-14-2012, 06:55 PM   #5
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Really wish I had known thanks for the help.
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Old 03-14-2012, 06:55 PM   #6
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No problem and good luck
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Old 03-14-2012, 07:18 PM   #7
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It still drives awesome though... other than the noise... So maybe a good sign?
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Old 03-14-2012, 07:25 PM   #8
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Quote:
Originally Posted by CrackrJack
It still drives awesome though... other than the noise... So maybe a good sign?
Maybe. You didn't kill it but could have done anywhere from 30$- 800$+ damage. So. If you get some pics of stuff maybe we can help. Do you know anyone with some mechanical knowledge? Who will look for free
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Old 03-14-2012, 07:40 PM   #9
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Oh boy... So i can keep driving on it? Correct? Just keep it out of 4wd? And yeah I have some people who can look at it... Such bad luck!!!
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Old 03-14-2012, 07:47 PM   #10
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Quote:
Originally Posted by CrackrJack
Oh boy... So i can keep driving on it? Correct? Just keep it out of 4wd? And yeah I have some people who can look at it... Such bad luck!!!
You could keep driving it but I would have it looked at first in all honestly. Depends what/if something's wrong.
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Old 03-14-2012, 07:50 PM   #11
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Well as of today it's my daily driver lol... Sheesh. Thanks a lot for the help!!!
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Old 03-14-2012, 07:54 PM   #12
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Can you take pics of the front driveshaft and give me a little better description of the actions and noises. And do it do any of them in 2wd.
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Old 03-14-2012, 08:02 PM   #13
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If my jeep has been sitting for a bit ,I run it for a bit, drive him around the block,and even wack it into 4x4 low and high,,can you explain about, not putting your jeep into 4x4 while on pavement? ,,have i just been lucky not to break anything,ive been doing this for years to keep everything running ok,got me worried now,,have fun.
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Old 03-14-2012, 08:07 PM   #14
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The transfer case has a one to one ratio any slight turn spins wheels at different speeds since dry pavement doesn't allow the wheels to slip. This causes binding in the transfer case extra stress on the ujoints, driveshaft, axles.
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Old 03-14-2012, 08:09 PM   #15
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Quote:
Originally Posted by Harro View Post
If my jeep has been sitting for a bit ,I run it for a bit, drive him around the block,and even wack it into 4x4 low and high,,can you explain about, not putting your jeep into 4x4 while on pavement? ,,have i just been lucky not to break anything,ive been doing this for years to keep everything running ok,got me worried now,,have fun.
If you're going straight, it won't hurt anything. When you turn, the pavement won't let the tires slip and it puts stress on the drivetrain.
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Old 03-14-2012, 08:15 PM   #16
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The problem isn't so much in the axles because one tire of the other cant slip but because both outputs of the tcase are spinning the same. When you turn one spins faster and one slips and spins slow with the stock open diff. However the one spinning faster-inside tire- makes the driveshaft in the front want to spin faster than the driveshaft driving the rear wheels-which are straight. This slight difference is what causes the strain and binding and why driving straight is okay but tight turns are not. The guys above me also hit it on the head.
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Old 03-14-2012, 08:16 PM   #17
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Sounds like your front drive shaft U-joints may have seen their final days.
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Old 03-14-2012, 08:16 PM   #18
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Quote:
Originally Posted by SteelBlue44
Sounds like your front drive shaft U-joints may have seen their final days.
Hopefully that's the problem. That's why I asked for pics.
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Old 03-14-2012, 08:24 PM   #19
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Hooray? Not $800+?
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Old 03-14-2012, 08:30 PM   #20
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Quote:
Originally Posted by CrackrJack
Hooray? Not $800+?
If they are u joints they are like 20 bucks a piece for good spices. And there are 3 but I doubt they are all gone either 1 r 2 it the cv went both might be bad. Then install if you can't do it.
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Old 03-14-2012, 08:32 PM   #21
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Well if its just the U-joints then no not $800+.. Your probably looking at anywhere from $25-$90 depending on quality and where you buy.
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Old 03-14-2012, 09:07 PM   #22
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Pics tomorrow!
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Old 03-14-2012, 09:16 PM   #23
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You didn't break your jeep by turning in 4wd...

Don't do it in the future, but the Jeep isn't that delicate. I cant' tell you how many times I accidently leave it in 4wd after snow storm in the morning and dry roads in the afternoon.

Look for the obvious worn out front end components. Bushings, u-joints, etc..
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Old 03-14-2012, 09:42 PM   #24
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Honestly the noise was probably there all along, you just didnt notice it. As for using 4wd on dry pavement...I've turned my jeep on dry pavement in 4wd plenty of times after a snowstorm. It binds a bit and its not great for it...definitely not something you wanna do often but doing it once isnt gonna break it.

The reason it bounces and bucks is because the wrangler has a part time 4wd transfer case. When 4wd is engaged it forces the front and rear driveshaft to turn at the same speed. When you turn, your front and rear driveshafts turn at different speeds...if you're on loose dirt, mud, snow, ect. theres no problem cause a tire will slip...but if you turn on dry pavement its much harder on the drivetrain and its forced to buck and bind because both driveshafts need to turn at the same speed.

Long story short im sure you did no real harm to your jeep nor do you need to bring it to a mechanic.

A clutch noise might be a bad throwout bearing caused by age and typical wear and tear, and it may need replacing in the near future, but it certainly wasnt caused by using 4wd on dry pavement.

Just avoid doing that as much as possible and keep it out of 4wd on the road unless its covered in snow
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Old 03-14-2012, 09:56 PM   #25
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Originally Posted by freeskier View Post
You didn't break your jeep by turning in 4wd...

Don't do it in the future, but the Jeep isn't that delicate. I cant' tell you how many times I accidently leave it in 4wd after snow storm in the morning and dry roads in the afternoon.

Look for the obvious worn out front end components. Bushings, u-joints, etc..
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Honestly the noise was probably there all along, you just didnt notice it. As for using 4wd on dry pavement...I've turned my jeep on dry pavement in 4wd plenty of times after a snowstorm. It binds a bit and its not great for it...definitely not something you wanna do often but doing it once isnt gonna break it.

The reason it bounces and bucks is because the wrangler has a part time 4wd transfer case. When 4wd is engaged it forces the front and rear driveshaft to turn at the same speed. When you turn, your front and rear driveshafts turn at different speeds...if you're on loose dirt, mud, snow, ect. theres no problem cause a tire will slip...but if you turn on dry pavement its much harder on the drivetrain and its forced to buck and bind because both driveshafts need to turn at the same speed.

Long story short im sure you did no real harm to your jeep nor do you need to bring it to a mechanic.

A clutch noise might be a bad throwout bearing caused by age and typical wear and tear, and it may need replacing in the near future, but it certainly wasnt caused by using 4wd on dry pavement.

Just avoid doing that as much as possible and keep it out of 4wd on the road unless its covered in snow
I agree with these guys 100%
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Old 03-14-2012, 10:03 PM   #26
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So noises and knocking shifters are normal huh? And doing it once won't break it. Well heck why don't we all drive around in 4wd then. I think it's more important for him to make sure he didn't damage a Ujoint or something else, to prevent something worse, than to just assume nothing was damaged.
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Old 03-14-2012, 10:04 PM   #27
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And IMO damage to your tcase and driveline may not hurt you right away but will catch up down the road with premature failure.
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Old 03-14-2012, 10:10 PM   #28
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So noises and knocking shifters are normal huh? And doing it once won't break it. Well heck why don't we all drive around in 4wd then. I think it's more important for him to make sure he didn't damage a Ujoint or something else, to prevent something worse, than to just assume nothing was damaged.
never said not to check anything just trying to give the poor guy some hope! just doing it once isnt (most of the time) going to bomb the tcase is all that i felt was being said. but you are right as well
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Old 03-14-2012, 10:20 PM   #29
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Originally Posted by fourty4magjr

never said not to check anything just trying to give the poor guy some hope! just doing it once isnt (most of the time) going to bomb the tcase is all that i felt was being said. but you are right as well
I know I wasn't saying anyone was. But no offense this guy didn't know not to drive in 4wd on pavement, he won't know what's wrong or right with his jeep. Is his shifter is moving now I am gona guess something was torqued or bent somehow, or possibly the tcase shifted or broke the mount if it's the t case shifter. And a noise (which may or may not be the clutch) which appears out of no where is not good. I am just trying to make sure the guy doesn't keep driving with bad joints, blow his front shaft somehow and take the whole tcase with it when a cheap Ujoint replacement would have saved him a lot of time money and headache. And yes there are actually a lot of times people have blown stuff doing it once. I have seen videos and read of guys doing it. I don't know if the op drove one small turn or did 4 or 5 sharp turns full throttle.
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Old 03-14-2012, 10:58 PM   #30
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I did everything at a very slow speed. And believe me the noises were not there when I first drove it... The sound is almost like if you put a baseball card in the spokes of your bike. It's awkward. The stick sat nice and still for the most part before but now shakes. Otherwise everything is the same as when I drove off the lot... Which was about a hour before I broke it :'(

Thanks for the attention this thread is getting and for a lot of info I'm actually gaining from reading it all. one of the reasons I actually bought the jeep was to learn more about car/truck stuff. So I'll have lots of questions. I just had no idea about the 4wd heh :/

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