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4X4 will not dis-engage smoke coming frome diff #998835 06/01/10 03:22 PM
Joined: Mar 2010
Posts: 34
J
jimmybjames Offline OP
Getting the Wheeling Fever
Ok guys, yet another issue with my 01 kia sportage. I went camping over the weekend and as I was heading home I had to use the 4wheel drive to get out of a grasy area without messing up the grass. after that I could not get the kia out of 4wheel. I treid and tried but as the shifter was in 2H and green 4wheel light was still on. I dont know why it would do this. I drove a couple miles down the road to a parts store and as I pulled in smoke starting coming from the diff. I turned the engine off wated a few minutes then moved it a little and it came out of 4wheel. I then changed the fluid, I figured if it was smoking the gear oil would be bad. Everet was able to tell me how to do this, props to him! SO my question is what would cuase the 4wheel to not dis-engage, why would the diff smoke and what kind of damage have I dont getting it to the parts store?

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Re: 4X4 will not dis-engage smoke coming frome diff [Re: jimmybjames] #998836 06/02/10 12:52 AM
Joined: Feb 2003
Posts: 2,243
DamKia Offline
Kia Moderator
Make sure you engage and disengage 4WD on loose surfaces. DO NOT drive for any distance on bitumen/concrete in 4WD or you will get wind-up in the tcase, making it difficult to disengage (as you found out).

The smoke would have been coming from the tcase (I'm assuming) under the vehicle, and not the "diff" (unspecified) and that is EXACTLY the problem - we do not have a center diff to even out the rotations of the front and rear driveshafts so they are fighting each other when you turn corners where the front driveshaft turns quicker than the rear. In out tcase this obviously causes HUGE internal loads in the tcase, and has been known to destroy them.


2002 Sporty , Ironman 2.5" spring, 2" body, 15 x 7 ROH wheels, K&N, 15 x 10.5 Simex Centipedes, Powerchip 91.

"Never argue with an idiot. They will bring you down to their level then beat you with experience!"
Re: 4X4 will not dis-engage smoke coming frome diff [Re: DamKia] #998837 06/02/10 01:06 AM
Joined: Jan 2008
Posts: 305
jaboo5322 Offline
Mudrunner
But how much, wind up, can you have. A short straight shot in two wheel drive should've done it. Or even a tap on the peddle, or stop and back a second. If he was driving in circles to the parts store, i could see a constant bind, in four wheel drive. Was the smoke from the front axle, or the middle of the car. Just wondering. <img src="/forums/images/graemlins/smile.gif" alt="" /> Even with front manual locking hubs, locked in, i could drive to where i was going with the tcase in two wheel. <img src="/forums/images/graemlins/scared.gif" alt="" />

P.s. This is why i brought up the straight shot, cause my kia has had the green light stay on many times for four wheel, and with the case in two high, it was in two high.

"I treid and tried but as the shifter was in 2H and green 4wheel light was still on."

Last edited by jaboo5322; 06/02/10 01:13 AM.

2001 Sportage, 4" RSG lift, Cragers W/31 10.5 Micky Claws, Warn Manual Hubs, 16 gallon Pro Street Fuel Cell, Custom Snorkel, K&N Filter.
1989 Dodge W250.
Re: 4X4 will not dis-engage smoke coming frome diff [Re: jaboo5322] #998838 06/02/10 04:52 AM
Joined: Feb 2003
Posts: 2,243
DamKia Offline
Kia Moderator
A slightly flat tire on one axle will induce wind-up, even when driven straight ahead only.

Simple advice is to simply DON'T DO IT - EVER.

Why is it that people will not do that to an F100 or Toyota Tacoma or Sammy with a part time tcase like we have, but continue to try to do it in Sportages? <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" /> <img src="/forums/images/graemlins/confused.gif" alt="" />

Quote
A short straight shot in two wheel drive should've done it.


That was the issue - he couldn't get it into 2WD.


2002 Sporty , Ironman 2.5" spring, 2" body, 15 x 7 ROH wheels, K&N, 15 x 10.5 Simex Centipedes, Powerchip 91.

"Never argue with an idiot. They will bring you down to their level then beat you with experience!"
Re: 4X4 will not dis-engage smoke coming frome diff [Re: DamKia] #998839 06/04/10 03:47 PM
Joined: Mar 2010
Posts: 34
J
jimmybjames Offline OP
Getting the Wheeling Fever
But why the smoke and what kind of damage did I do if any? It looked like the smoke was coming from the front diff but could have been the t case as the smoke would have rolled out looking like it came from the diff. I want to test it to make sure it is all still working but am worried I would not be able to pull it out of 4wheel. If this was your ride what would your next step be?

Re: 4X4 will not dis-engage smoke coming frome diff [Re: jimmybjames] #998840 06/05/10 12:42 AM
Joined: Jan 2008
Posts: 305
jaboo5322 Offline
Mudrunner
If your shifter was in the two high position, i think you had to be in two high. i've had the light stay on, on if the lever was even in two high, and it was in two high. Did it bind on a turn with the lever in two high? Do you have stock hubs? How did it drive after you got on the road. Did it pull? Or drive like a daily driver? Just wondering. <img src="/forums/images/graemlins/smile.gif" alt="" />


2001 Sportage, 4" RSG lift, Cragers W/31 10.5 Micky Claws, Warn Manual Hubs, 16 gallon Pro Street Fuel Cell, Custom Snorkel, K&N Filter.
1989 Dodge W250.
Re: 4X4 will not dis-engage smoke coming frome diff [Re: jaboo5322] #998841 06/05/10 12:50 AM
Joined: Jan 2008
Posts: 305
jaboo5322 Offline
Mudrunner
In example. If i pulled on road, threw the lever in two high, the four wheel light would alot of times stay on, but if i made a sharp turn, the front would not bind like it would if the transfer case was actually enguaged. Even if i had manual hub locks engauged, as the front differential should compensate for road speed. Unless you have a front locker. Let us know. If nothing else, a full fluid check is very advised. Front diff, tcase, rear diff, trans, heck, do it all buddy. You can't go wrong. <img src="/forums/images/graemlins/smile.gif" alt="" />


2001 Sportage, 4" RSG lift, Cragers W/31 10.5 Micky Claws, Warn Manual Hubs, 16 gallon Pro Street Fuel Cell, Custom Snorkel, K&N Filter.
1989 Dodge W250.

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