Re: 98 Navigator stuck in low 4x4 ??
He must have really jammed the transfer case lever to shift it to 4LO in park. I'm guessing you've tried to put it back while in Park to no avail. Driving on the highway in 4LO is definitely bad on the drive-train. Since you can get it into drive without a problem, try reversing the truck and then putting the trans into neutral with the truck still rolling and then try to shift out of 4LO. The gears probably binded up rather tight and perhaps that's all it needs is a shake in the opposite direction. It's a trick with older trucks that have problems shifting from 4HI to 4LO - let the truck roll a bit. Just to give you a heads up the gears may chatter a bit but its worth a try.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!