which year is it?? the 77 and 78 models have a piece of crap for an ignition switch. it can be really finicky. which year is it?? you can jump the poles if its a 77 or 8 and that would tell you if its the switch. while he was yanking it around, he obviously loosened something. check your fuses too. under left side cover in a little box maybe.
jc
jc