key switch will not stay on???

Question

i start the car if i put a penney under the switch it stays on .how hard is it to change or fix this prob.

i put the key in it starts i let go it stops.
the penny sits under the loch housing it worked only because if you held the key up it stayed on

Answer 1

You question not clear. How do you start the car? Where exactly do you put the penny under the switch?
Most IMPORTANTLY, HOW DID YOU DISCOVER THIS TRICK WITH THE PENNY>