car not cranking

What is your question?

three times car would not start after driving it for a short while.each time nothing happened when turning the key everything worked but starting the car. after sitting for about two hours the car started again as if nothing was wrong. my mechanics havent been able to find the source of the problem

What makes this problem better or worse?

it has happened three times car is not driven more than a couple times a week

How long has your 1990 Chevrolet Corvette had this problem?

it happened in june againin november and in march