Power loss/brake lock up in 4hi - specific circumstances

So we've now had multiple instances in 4wd where we experienced some strange behaviors.

The first is what seems to be a significant power loss under certain conditions. No not the standard anemic 3.5 stuff.

Scenario: Vehicle on a slight decline with the front wheels in a sort of a dip/trench, or against a rut upslope.

In all instances the truck acts as if it's high centered or a wheel is off the ground, it wasn't. Hitting the throttle the power seems to go nowhere. We had it happen again today and I immediately put it in 4lo with the locker and was able to get out but even once we were moving the power was extremely low. That is until about ten feet forward when all of the sudden it kicked back in.

The second issue is I turn traction control off when off road (stopped, press and hold for 5-7 seconds, both lights on dash). Occasionally I will be cruising along on uneven terrain and the truck will hit the brakes and cut all power out of nowhere. I'll have to come to a complete stop for the truck to reset and allow power again. Am I missing something in deactivating traction control? The way it does it seems incredibly unsafe to me as what if it cuts out and brakes right at the worst possible time?

Anyone experienced similar issues?

 

Strange... I am sorry you are having these difficulties. I am sure there are people on here that can give you some direction. I however have zero clue what you're problem is.

Good luck

 

It's likely user error but we'll see. Haha

 

99% of my issues are user error so I understand your point

 

I had a similar instance where I was climbing a very muddy hill in 4hi. I lost momentum and started sliding back while applying throttle. It lost all power and then shut off completely. I backed it down with the engine off and looked all over for any oil loss-the low oil pressure warning had come on when the engine shut down. No leaks found. It cranked for a while before it restarted. The dealer told me that’s what happens if you are in drive and move backwards-the engine shuts off. I don’t think that would’ve happened in 4lo.

 

Interesting and good to know. I definitely did not move the opposite direction in my circumstances, but good to know in the future.

When this happened before I had the truck scanned for codes and there was nothing stored in the ecu.