okay my key was sticking randomly yesterday. today turned truck on went to store. when i tried to turn the key off it would not budge. i even tried to use vise grips to turn it not a budge. so i could not turn my truck off. i tried moving it from park to dirve then neutral no budge. usually if you try to turn your key after engines on it makes a grinding noise. mine just kills the accessories. please help. had to remove intake and unplug wires to carborator to turn off.