Re: Can't open my glovebox
if the key turns at all, it's usually not the tumblers. a key does two things. when inserted, it lines up the tumblers proper so the cylinder can rotate. the key also gives ya a handle to rotate it with. so, like i say, if it turns at all, it most likely ain't the tumblers, specially if it turns free then get's caught. most likely the cam on the back that's hanging somewhere. misaligned with the strike, caught on stuff inside the box. rattleing it, the box, the lock, the lid, may free it.
go ahead and lub thru the key hole too. i like triflow. lub thru the keyhole won't help if the cams hanging up, but it won't hurt either....
lock some vise grips on the key. be sure ya got two keys as yer gettin ready to attempt force. with the pliers on it. ya can turn it harder. just use much judgement as ya can shear the head of the key right off. if ya do, broke keys can be extracted, but it's better to not shear it. just keep working with it. lub, force with judgement, rattleing the whole box, lock, lid etc.... worse case, ya gotta drill it if it won't cooperate. good thing is, they is cheap locks and genearlly a replacement lock from the hardware store will suffice. if ya do drill it. try to keep the cam on the back intact as that may be specific to your box. like in not available short of the oem, which may or may not be available. then it's a punt. whatever it takes to make it work....
ya might also try prying the lid open somehow. on many cheap cam locks, the cam ain't that strong. ya pry on the lid and the cam will bend letting ya open the box a little. perhaps letting ya manipulate it thru the slot....sometimes it'll even open, usually just bending the cam which can be straightened at that point. if it breaks, back to punt to fix it and make it work......
at this point, from yer discription, my vote goes to something inside the box that's preventing rotation....... good luck....