Tranfer Case noise when in gear???

[ProjectTalon130]

Hi, searched but didn't see anything exactly like this. My car runs great and has never really been beaten on by just the look, feel and sound of the car (engine). However, the car in gear, especially in a low gear when you can hear noises rather well, makes a whirly, almost grinding noise from underneath. As soon as i go into Nuetral its gone. Any idea what this noise is??? Had a Diamler/Chrysler District Manager and tech listen to it and he thought it was definitely the Transfer Case. How do i find out if my car is on the list that need the fix??? Just call the dealer??? thanks.

 

[turboslug]

I also have this problem of a whinning noise, and getting louder, coming from under my car. I was speeding up f/t and I heard this big POP from under the car. Now I have black oil all over under there. Engine oil is amber, and tranny oil is red. So I think I blew my t-case.

 

[ProjectTalon130]

well, i just did the fluids a short while ago and the noise from what i can tell is still there a bit. The fluids shouldn't be red unless you have an automatic transmission. The Transfer case uses an almost black 75w-90 gear oil and so does a manual transaxle. the rearend needs something just a bit heavier, GL-5 or higher (80w-90 or higher). I replaced all these at my oil change job and first seems a little better getting into but the noise is still prevelant.

 

[turboslug]

I have an auto , but yeah, my sound sound like a bandsaw, and its getting louder. I think I blew my t-case, cause nothing else has black oil. The whinning is probably a t-case with no oil. Guess I'll have to get a new one.

 

[ProjectTalon130]

before you spend any money, go to your nearest chrystler/jeep dealership and have them run a VIN check on your car and see if it falls under the recall, if so, they replace your T-case for FREE! Make this top priority b/f you go driving around and have the T-case lock up and you crash.

 

[turboslug]

They say "its been looked at". I called chrysler and they said its up to the dealership weather they want to replace it for free or not. I don't know what to do. Chrysler aint on my side, chrysler dealership aint on my side, and I know its suppossed to be fixed for free. AWWWWWWWW. I have work and shit, I can't afford this.

 

[GRNDSM]

First of all, the fact that it was “looked at” means nothing… 90% of time they try to say that everything is fine, even if it is not and out with an unsafe vehicle. That is why people started taking their car to dealers “properly prepped”. Basically you drain the T-case and make it look like it all came out of the yoke.

You can argue if this is ethical all you want, but when you go up against an idiot at the service counted who can not see the obvious, empty transfer case is the only way to convince him that it is the problem.

You can fight them, saying that this is a safety recall and is valid for the life of the car (they will try to deny it). After you get them look at the car or take care of it yourself and the noise is still there, you might want to check your carrier bearing. They often have that type of noise.

If it is not the t-case or the carrier bearing, it is most likely your tranny, which is not good news. But I would leave the tranny for the last!

Leon
RR

 

[ProjectTalon130]

Where exactly is this "carrier bearing"???

 

[GRNDSM]

Originally posted by ProjectTalon130
Where exactly is this "carrier bearing"???

It is a bearing that supports your driveshaft along the way. I have seen people replace transfer case (~$100) and rebuild their tranny ($1300), trying to fix that noise, only to later discover that it was a carrier bearing...

Leon
RR

 

[ProjectTalon130]

i saw on here a vfaq to seal the bearings with silicone caulk??? why would you use a hardner like silicone??? wouldn't you want a grease (synthetic) that flows with the bearings but doesn't allow dirt/water to come in??? Thanks.

P.S.- tranny shifts fine, is stubborn to go into first "most times", unless i do the old trick of going from 2nd to 1st, works great everytime, all other gears good, noise only while in gear, would this still point to the carrier bearings even if the noise goes away out of gear???

 

[GRNDSM]

>why would you use a hardner like silicone???

You do not use silicone in the bearing… You using it in the be rubber isolator which supports the bearing. The idea to reduce driveshaft movement. BTW this is a controversial mod, I have seen people get major vibration after it…

>wouldn't you want a grease (synthetic) that flows with the bearings but doesn't allow dirt/water to come in???

On the bearing itself, maybe. But not on the rubber mount…

>P.S.- tranny shifts fine, is stubborn to go into first "most times", unless i do the old
>trick of going from 2nd to 1st, works great everytime, all other gears good, noise
>only while in gear,

If it is the tranny it has nothing to do with shifting. You can have a perfectly shifting tranny with bad bearing(s). Which is a shame, because in that case you have rebuild a good shifting tranny .

Leon
RR

 

[Cirus_93TSI]

i was just about to make a new topic about this, then a saw this thread
my car also makes a whining noise that sounds kinda like a band saw from under the car, i had a bad front axel that i thought was making the noise, i replaced it and the noise went away for about 2 or 3 weeks, then im driving home about 15 minutes ago and it starts making the noise again out of the blue

mine only seems to do it in high gears, its never happened in 1st and has only happened in second once when i was turning, but when i get into 4th or 5th it seems to make the noise quite often, if i put the gas down it usually goes away, if i push the clutch in it goes away as soon as i let it back out, it goes away within a few seconds if i go to neutral but not right away

im pretty sure the t-case was replaced on my car once already before i bought it, can it be fixed for free as a recal more then once? or will they check the vin and say it was already replaced?

could the noise be there because the trans or t-case is low on oil? i know a good ammount leaked out of the trans when i put my axel in, i put about as much as leaked out back in but it could have been low already, i have never checked the oil in my t-case, nor do i even know how to change it

also, where can i get a new carrier berring and how much would it be? i might as well replace that and see if it whats making the noise before i look into replacing the t-case

i really need to find out where this noise is comming from, i just dont understand why it went for 3 weeks without making the noise a single time and now out of the blue starts making it again, it was getting really loud and happening about 60% of the time my car was moving before i changed the axel, then a changed the axel and it completly went away so i thought thats what was making the noise, any thoughts on why it didnt make the noise then but started making it again for no apparent reason?

 

[Cirus_93TSI]

if it makes any difference in diagnosing my problem, my car makes this noise when in neural, i drove it earlier and it made the noise while i was drifting to a stop in neutral, made it untill i came to a complete stop
but then i took it up to about 75 and it stopped making it, didnt make the noise all the way back to my house

 

[ProjectTalon130]

Sounds like it could even be your brakes, how do your rotors look? Are your pads wearing unevenly??? My friends 300GT VR4 make a whirly/grinding sound whenever his wheels were just spinning....needed new Rotors BAD.

 

[Cirus_93TSI]

its not comming from the brakes, its comming from under the floor in the middle of the car, i can feel it vibrating under the floor with my foot when im driving, i would be able to hear the brakes squeaking when i stick my head out the windlw when driving, iv done that and its comming from under the car
it is either the tranny, the t-case, or the carrier berrings, its comming from under the car around the engine compartment

 

[ProjectTalon130]

if the noise fluctuates with speed, probably your carrier bearings...if its steady, more so your t-case or tranny, but any can change in noise, the carrier bearing is more likely too though.

 

[Cirus_93TSI]

im thinking it is the carrier berring(actually i think the one toward the back of the car is going bad too), it does flucutate with speed but the noise isnt always there, yesterday it was squeeling the whole time i drove it so i just parked it, today it hardly made the noise at all
when im slowing down the noise gets slower, but after about 40 mph its so fast and loud i cant tell if there is any change, but then sometimes it just goes away for an hour at a time
im thinking its the carrier berings because sometimes before the squeel, and sometimes instead of the squeeling noise, it makes a sort of rattling noise that sounds like a blown bearing
and also because if im at a high enough rpm to punch it and take off without downshifting, when i do it stops making the noise, and if it doesnt stop within a few seconds of stepping on the gas it will as soon as i let off the gas, if i tap the gas to the floor a few times it always goes away immiediatly
and my driveshaft seems to thump under my floor much more often then before, it used to only do it when i banged gears running it, now t does it when im driving normaly