Key won't turn in ignition, ignition locked, but key will come out on 2004 Chevrolet Impala

I took everything apart and all wires are good, fuses good. So I guess I'll have to get new ignition lock cylinder, but would the lock cylinder cause the problem w shifter nob not popping out all the way? I also noticed that my battery (positive) screw is stripped so I put a charger on it and noticed there is no charge on positive side. Would that cause all the problems?

by in Tacoma, WA on October 30, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers 2 comments
ANSWER by , October 30, 2013
If it's a floor shift, talking about knob, the shift linkage might need adjusted so it will go all the way in lock position. The key not turning is most likely a worn key, or lock cylinder. Very hard to remove if the key won't turn. If key is worn you can get a replacement at the Dealer with your title as proof of ownership.
COMMENT by , October 30, 2013
Thank u and i did try a spare key and it still wouldnt turn, but I read that its almost impossible to change cylinder when u cant turn key to acc or on position, so I gonna go get a key from dealership see if maybe luck will strike me.
ANSWER by , October 31, 2013
AGREE WITH PROFESSOR
COMMENT by , October 31, 2013
Thank u guys