Yes you can, only to 4x4 high
it must also be below 30mph
NO !
Yes, it is a shift on the fly system.
Yes, You can only shift it into 4 high while driving. You can not shift to 4 low while moving.
yes
No. No no no
If you have push button 4-Wheel Drive, it is recommended that you use it every once in a while, in order to keep gunk, rust, and corrosion to build up on moving parts. The mostly likeley (though not definite) reason would be that you let the 4-wheel drive unused for so long that corrosion has built up on the parts and the actuator that engages the 4-Wheel Drive doesn't have the power to engage it past the corrosion. You'll most likely need to take it in to be cleaned, or to have parts replaced. In the future, every month or so, engage 4-Wheel Drive and drive around in some mud, grass, sand, or any other loose ground for a bit, just to keep the parts moving and clean.
To engage 4 wheel drive on the Jeep Liberty Sport simply move the handle on the center console that has the letters 4H, 2H, N, and 4L. For driving in snow 4H is the gear to use. Put the car in to 4 wheel drive while driving very slowly.
put your truck in neutral push the brake and take it out of four wheel drive if that dont work let it roll very little in neutral and try to take it out while its moving very slow
Pops while moving but probably not when sitting still and just turning the wheel? One or both of the axles has a torn boot and the CV joint is going bad. Front wheel drive I assume.
Depends on if your shifting from 4 Hi or 4 Low to 2 wheel drive. If going from 4 Hi to 2 Hi you can shift it while moving, if going from 4 Low to 2 Hi, you must stop and put it in neutral.
Turn real sharp while moving and see if you feel the front wheels jerking
If you put it in 4-wheel drive, and turn the steering wheel real sharp to the left or right while moving forward. The steering wheel will jerk and fill funny. Are you can put it up on 4 jack stands and see if all 4 wheels are turning.