Recently my dome light switch "broke" it is super loose and the connection is not there so it doesn't turn on unless I hold it up. Anyone know how to solve this problem? Thanks.

 

Disassemble, repair, or replace I would think. If the switch is mechanically broken then it will not allow the contacts to maintain contact. I doubt you'll find them the individual parts to fix the switch . I would just order one from a GM parts house or neb an entire dome light from a junkyard