Why did I not have front wheels spinning?

[Dug]

DO you know if the fourwheel drive was working before you noticed the front wheels were not spinning?
When you was in low lock, are you sure the tire on the opposite side of what you could see was not turning?
Trying to help narrow down the possibillities.

[tomp]

At part throttle, nothing was spinning. Then, when applying more throttle to make it over the top, the rear would break loose and spin. Fronts never would move while rear was spinning as both fronts were on the ground and I was sitting still.

Only way to make it over was to reverse and build up some forward momentum.

Also tried slightly mashing the brake during throttling and that did not do anything

[tomp]

I will have to try this move again next time I'm out. However, it did happen several times over this weekend.

Any idea what keywords I could search on to bring up those threads that show each mode? IE, TC, TC2, 4x4 hi, 4x4 low, and 4x4 low-lock?

[timgco]

Originally Posted by tomp

I will have to try this move again next time I'm out. However, it did happen several times over this weekend.

Any idea what keywords I could search on to bring up those threads that show each mode? IE, TC, TC2, 4x4 hi, 4x4 low, and 4x4 low-lock?

i don't want you to think I'm implying you don't know what you are doing, but are you 100% positive it was in 4lo locked. I have seen people push the button while moving and the light flashes but does not engage.

It's possible the light can be solid also and the T Case is not engaging. I've seen this on two trucks to date.

Did you BTM while in 4 LO Locked? If so, were you turning the stering wheel back and forth? Sometime this will give the truck a slightly different angle since it had most weight on the front and cause one of the front wheels to spin.

you may want to follow up with the dealer if you have one close by to check out your T case and to see that everything is engaging properly.

Good luck,
Tim.

[tomp]

Tim, 110% sure it was 4-wheel low-locked. There is no mistaking it. Changed into that mode in neutral while stopped and did this each time before encountering the uphill climb. Each time it did the same thing.

[ShortBus]

My front driver tire tore into the wiring loom that runs on the frame at the back of the tire. This caused some electircal problems that included the transfer case not getting the signal to engage. If you have been doing any heavy articulation, I would check it out. If this is the problem, don't be afraid to tape'em back together. The dealer charged me $100 bucks to do mine and it looks like crap.

[Hummie2]

Sounds like a serious T-case problem. Could be a broken lockup shiftfork not letting the T-case go into lock mode. The shift motor turns the shifter cam and the encoder shows that it shifted, but nothing happen inside the T-case to shift the gears. Was the front driveshaft turning when you noticed the front wheels weren't spinning?

[tomp]

Not a wireloom problem

Hummie2, I need to check the front shaft next time I am out. More than likely it was not spinning, but still good idea