Re: 4X4 wont work!? :((
If there's no manual pull lever for the transfer case and you have to use buttons to change drive modes then the actuator is probably the culprit. It's not the cheapest thing to replace but can be found at salvage yards at reasonable cost. To go into 4LO you have to have the transmission in neutral. You can have it in drive to switch to 4HI and back into 2HI.
'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!