Cadillac Repair: 78 Cadillac, caddilac, spark plugs

Question
i have a caddilac. i was woundering why my car just totaly shuts down and then it wont star up again. and i have no clue whaat going on

Answer
What kind of engine or any other kind of work has been performed on the car lately ?.

Do you have spark to the spark plugs when you try and start the car ?.

if you spray a small amount of starting fluid in the air cleaner will it TRY and start ?.