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Topic Review (Newest First)
01-27-2008 07:48 PM
nicolas-eric my front axle makes me crazy...

now some 300 mls later there is only a very very silent noise in 2H around 40 mph. it sounds like bus axles but not that loud.
and in 4H there is the same noise. the loud whining and grinding noise is gone.
i changed the diff fluid this weekend and everything looks fine in there.
01-21-2008 07:35 PM
nicolas-eric the shop where they installed the gears is the only in my town that is able to do that.
the gear is from alloy.
they needed much longer than they though before for installing the gear.

i will talk to them next week.

i touched the front diff on many points after a long ride on the highway.and it wasnīt hot, only a bit warm like the rear diff.
i donīt think that itīs a relly big problem. the same said a friend who repairs old unimogs in his job.

if the pinion isnīt adjusted exactly, can that cause any major damage to the gears?
01-21-2008 07:07 PM
autogyver All I can say is I have set up several gear sets and this sounds exactly like a pinion depth problem, if the pinion is not in EXACTLY the proper depth you will have noise either on the pull side or the coast side like yours.what brand of gear did you use??richmond are very hard to set-up for a perfect fit. try taking it by another shop for their opinion, the last guy that put it in will not be a good source, he does not wan't to do it again for free. so get another opinion then let him know he gets to do the job over..good luck...
01-21-2008 06:38 PM
nicolas-eric i had the jeep on a test stand to see where the noise comes from. itīs definately the front diff and not the T-case.
in 2H itīs very silent and you hear it only when you know that itīs there.
in 4H it becomes louder. when i coast it becomes much louder and sounds more like a grinding noise.

it sounds like the "front pinion bearing noise" thatīs described in the FSM.
01-21-2008 06:30 PM
1BLKJP
Quote:
Originally Posted by nicolas-eric View Post
the noise isnīt really noticeable in 2H and in 4H itīs only there above 25-30 mph.

could something be damaged if i donīt do anything with it until i have the money to fix it?
Buddy that's so hard to tell what's even wrong so answering this question would be a complete toss up.

If you really hear it bad in 4wd then you might at least try draining and re-filling your TCase to rule that out. It only holds a couple quarts so it won't be that expensive.
01-21-2008 06:28 PM
nicolas-eric the noise isnīt really noticeable in 2H and in 4H itīs only there above 25-30 mph.

could something be damaged if i donīt do anything with it until i have the money to fix it?
01-21-2008 04:11 PM
1BLKJP Nicolas, if you are describing a whining noise then there is only a couple things that could be wrong and it's not the front pinion angle. That could create a vibration, but not a whining noise. If you can grab your front driveshaft and get movement out of it by shaking it then it's possible that your pinion bearing could be bad or that he possibly crushed the crush sleeve too far when they installed the ARB. They are only good for one use. Otherwise I'd also suggest checking to make sure your TCase is full and that the fluid is good in there.

But honestly man how you described the noise at first I'm still calling it a deacceleration gear noise.
01-21-2008 12:10 AM
Triple88a
Quote:
Originally Posted by 4point View Post
You had all that going on..........................and decided to log onto WF?
lol i like when people say oh i'm so drunk right now, and they are on wf.. if you're drunk you would not be able to log on and if you're here than youre not drunk enough so..

lol

After an amazing weekend party that started friday i feel lonely now as i'm all alone in my house without any friends :cry:.
01-20-2008 11:59 PM
350chevrolet it was kinda between 2 parties when i came home to change, and no, i wasnt driving. but yeah, long story....
01-20-2008 11:49 PM
4point
Quote:
Originally Posted by 350chevrolet View Post
^^
o my bad, i was, uh, intoxicated. fun party, hot girls, and rum will do that to you.
You had all that going on..........................and decided to log onto WF?
01-20-2008 11:46 PM
350chevrolet ^^
o my bad, i was, uh, intoxicated. fun party, hot girls, and rum will do that to you.
01-20-2008 11:37 PM
Triple88a
Quote:
Originally Posted by 350chevrolet View Post
what?? did i miss something here?
By that i'd assume he is talking about spelling errors
01-20-2008 01:32 AM
350chevrolet
Quote:
Originally Posted by debruins View Post
looks like something i woulda wrote!
OMG you've got twin.


what?? did i miss something here?
01-19-2008 10:49 PM
4point
Quote:
Originally Posted by 350chevrolet View Post
no, not really. just make sure ytou get a kit so you get the crush slevae and stuff. you gotta take the whole dif out an all. but other tahn that iat aint sao bad. just amake sur eto torqu shit tpo the rite torque. if oyu aintn ever done it before take it to a shop mna, theyl do it rite but itl cost you like 3-500$ or miore.
Quote:
Originally Posted by debruins View Post
looks like something i woulda wrote!
OMG you've got twin.
01-19-2008 10:40 PM
debruins
Quote:
Originally Posted by 350chevrolet View Post
no, not really. just make sure ytou get a kit so you get the crush slevae and stuff. you gotta take the whole dif out an all. but other tahn that iat aint sao bad. just amake sur eto torqu shit tpo the rite torque. if oyu aintn ever done it before take it to a shop mna, theyl do it rite but itl cost you like 3-500$ or miore.
looks like something i woulda wrote!
01-19-2008 10:08 PM
4point
Quote:
Originally Posted by nicolas-eric View Post
today we made the first service with the new gears/lockers (axle oil change). we tested it out and the ring&pinion is installed perfect.

another buddy from australia said it could be the pinion bearing. but whatīs the pinion bearing? i donīt know th word "bearing". sorry, my english isnīt perfect.

any other ideas...?
Quote:
Originally Posted by nicolas-eric View Post
is it hard to replace the pinion bearing?
The guy who installed your gears already did it once, are you sure he did it OK?
01-19-2008 01:11 AM
350chevrolet no, not really. just make sure ytou get a kit so you get the crush slevae and stuff. you gotta take the whole dif out an all. but other tahn that iat aint sao bad. just amake sur eto torqu shit tpo the rite torque. if oyu aintn ever done it before take it to a shop mna, theyl do it rite but itl cost you like 3-500$ or miore.
01-19-2008 12:48 AM
nicolas-eric is it hard to replace the pinion bearing?
01-18-2008 11:09 PM
350chevrolet pull it apart and check everything. leaving it and driving like that WILL destroy your new stuff. i just had to replace the rear on my dads GC because the pinion bearing went and allowed the pinion to move a little. it ended up chewing the pinion and ring gear until it overheated the axle and melted the seal causing a smokescreen behind him while going 75mph down i295. the thing got so hot that it warped the whole axle housing. good thing about it was that it gave me an excuse to put in a rear with disc brakes. the good thing about your problem is that it is giving you an excuse to put a d44 in there!!!
01-18-2008 09:57 PM
4point The pinion bearing is shown here on the pinion.
Attachment 3283
01-18-2008 09:39 PM
autogyver
Quote:
Originally Posted by debruins View Post
im also wondering about this and dont know if its realted or if i should make my own thread, but whenever i put it in reverse it makes a whining noise from like the tranny i think or rear axle nim not sure



oh adn by put i mena its ifne whne it in gear with clutch in but when moving it makes the noise and gets louder as i go faster in reverse
if your jeep is a manual transmission this is normal. all manual transmissions have helical cut gears on the forward side but the reverse gears and idler gear which activates it are straight cut gears that will always make some noise...don't worry..
01-18-2008 08:39 PM
debruins im also wondering about this and dont know if its realted or if i should make my own thread, but whenever i put it in reverse it makes a whining noise from like the tranny i think or rear axle nim not sure



oh adn by put i mena its ifne whne it in gear with clutch in but when moving it makes the noise and gets louder as i go faster in reverse
01-18-2008 07:36 PM
nicolas-eric today we made the first service with the new gears/lockers (axle oil change). we tested it out and the ring&pinion is installed perfect.

do you think that the whining noise is caused by a wrong pinion angle? is 4.5" lift enough for such a problem?

could i correct it with some of these cam bolts in the lower CA mount at the front axle? it looks like my TJs has some cam bolts there, but there are only some normal bolts installed.

where can i buy these cam bolts? are the available as a spare part from jeep? do you have a part '?



another buddy from australia said it could be the pinion bearing. but whatīs the pinion bearing? i donīt know th word "bearing". sorry, my english isnīt perfect.

any other ideas...?
12-24-2007 09:57 AM
jeeperx2 yeah - lock outs disengage everything. im assuming his doesnt have lockouts so hes hearing the noise in 2hi as well
12-23-2007 07:43 PM
mr4x4
Quote:
Originally Posted by jeeperx2 View Post
My point is if everything in the front-end is still rotating but disengaged(in 2hi) at the transfer case then the gear whinning will be less and will make more noise in 4hi when everything is actually being driveshaft driven
if you have the lock out hubs you wont here the gear whine in 2wheel drive with the hubs disconnected
12-23-2007 06:53 PM
jeeperx2 It does sound like gear noise to me, but im un-clear if jeeps are actual part-time 4x4-I know they dont have lock-outs but when its in 2hi is the front end disengaged at the transfer case or the front hubs. My point is if everything in the front-end is still rotating but disengaged(in 2hi) at the transfer case then the gear whinning will be less and will make more noise in 4hi when everything is actually being driveshaft driven
12-23-2007 03:56 PM
nicolas-eric i heard some wrong installed gears before. but there the whining noise was the same in 2H and 4H.
what makes me a bit confused is that the noise changes when i shift to 4H.

in the next days i will remove the front driveshaft to see if there is still a noise without front driveshaft.
12-23-2007 03:33 PM
mr4x4 who did your gears
your backlash could be off that will cause the gears to wine
but if your backlash is off then the pinion depth might not be right
whoever set up your gears might have been in a hurry and not set them up right

my gears have never made any noise

I would have your backlash checked and if it is off then you should check you gear pattern
12-23-2007 02:53 PM
bpowa
Quote:
Originally Posted by Triple88a View Post
bad wheel bearings sound like a bag of marbles hitting each other and the loudness usually changes with speed...
well it depends on how bad the bearing are. I heard a low hum to what your describing.
12-23-2007 02:48 PM
nicolas-eric now after about 100 mls in 4H i can describe the noise a bit better.

in 2H itÂīs only a very quiet whining noise at about 40 mls.

in 4H itÂīs a bit louder when i accellerate or hold the speed. when iÂīm coasting (i have an auto tranny) it becomes louder and sounds like a small driller at the dentist.

the rear driveline angle is ok. i have no vibrations.

do you really think that the front driveline angle could cause these whining noises?
you could be right. i noticed this noise the first time after putting in the 2.5" pucks in the front. perhaps another poblem is that the axle came 1.5" to the right because of the stock track bar. an adjutable track bar is already ordered.

today i checked the diff oil again. it still looks like new. and the diff didnÂīt become too hot.
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