when I accel off a stop sign front wheels chirp but the selector and indicator say 2 wheels engaged I have vacuum on one side of canister but not the other even when selector is moved someone mentioned banging on the actuator but not keen on that

 

Please anyone help with some sort of Ideas
Thank you

 

Hi! Have u tried putting it in reverse and backing up for a little ways my 01 montero would do this and putting it in reverse and backing up a little ways would pop it right out of 4x4. Hope this helps u!