Transmission wind-up

Harben, Click on the icon "on the road" and then 4WD Skills. Follow it down to Articles and you will find an explanation therer as well as other tips

Harben ... Doesn't sound right to me.

Wind up you would get in the transfer case and 4wd drive train when you drive on a hard surface in a locked up 4WD range. However, I don't believe that it can extend back into the transmission. But, I maybe wrong.

Under what situations do you get the temp light (ie .. what sort of driving, is it on bitumen, offroad, etc)? For example, sand driving or heavy towing can generate heat in a transmission. Was it a one off situation after some heavy going, or is it a repeat problem?

If you can give us all some more specific info on the problem, we can have a group think about it and see if we can come up with something.

Cheers,
Savvas

harben, transmission wind up results from driving on a hard surface in high or low locked 4wd. If you deviate from a straight line on a hard surface when the transmission is locked in 4wd the difference in speed between the front wheels and the back wheels causes the transmission to "wind up". The quick fix if this happens is to reverse the direction of travel to "unwind" it. If your vehicle has constant or full time 4wd there is a differential between the front and rear wheels which allows for differences in speed on hard surfaces. For maximum traction with such vehicles it is necessary to "lock" the centre diff. If you have part time 4wd then there is no problemin 2wd but when 4wd is selected you must be sure the surface will allow for differences in speed between the front pair of wheels and the rear pair of wheels. Hope this helps!

It sounds as if the dealer thinks you maybe driving on the bitumen with 4x4 or centre diff lock engaged.
Even though your front and rear tyres are the same size,there are minute differences in tyre height and pressure.
After thousands of tyre revolutions the front set may have travelled much further than the rear leading to wind up or jamming in the transfer case.
Steering around corners also causes tyres to travel different distances leading to wind up.

The 1st symptom is a t-case stuck in 4x4.
By coincidence this happened to me yesterday .Somehow I knocked the very soft 4x4 switch on my landcruiser and didnt notice the 4x4 engaged light driving into the sunrise.
On the way to work I noticed a very worrying vibration in the drivetrain like a dog shaking the water off.
Anyway I worked it out and drove backwards with the 4x4 switch off until it popped out.
Driving in circles or soft soil also works

Hi Harben, I have had wind up plenty of times in my old 45 cruiser and just reverse up and kick it out of 4wd , and I am no expert but cannot see how you could get it in an auto trans ?

I can't see how wind up would cause AT overheating. You would'nt be able to steer the thing long before it overheated the gearbox, in act you'd probally crack an axel or CV before then. Sounds like somthing seriously wrong with the gear box or cooling system. Or maybe somthing not so serious with the electronics, but in any case it's got nothing to do with you being in 4wd.