please help!!!!!shifter on the floor..not a blown fuse..cause sometimes it locks in most of the time not..at first i could wiggle shifter sideways or go into low loc and then it wood go in but not all the time worked fine a couple months ago in winter havent used it much since then wen it does...

97 ford 4x4...4x4 light quit comin on works rarely did work jus fine this winter now won't loc in took all wire connections apaart on transfer cleaned and wd40 them didnt help any ideas??