It will not start ran out of gas know has a 1/2 tank and still want start

The first thing you should check is the fuel pump. when turning the ignition to the on position, if the car is completely silent, you can hear the fuel pump click or make noise towards the back of the car. one thing i would suggest doing is turning the car on, but not trying to start it, that way the fuel pmp can beggin to pump fuel to the engine. if after a while you try to start it and no go, then keep turning it over. it might take a lot of turning over to start because the fuel lines alone have over a gallon on most cars, so it might be normal if it takes forever to start the first time. another way to check to see if the fuel pump is working is after trying to turn it over, and you remove the gas cap, you will hear the pressure being let out. if you hear this, that is good. if not, try cheking to see if t he fuel filter has gas in it. if it is still empty, than you have a bigger problem. you should also try spraying either gas of starter fluid into the carburator to make sure no other problems have occured. hope this helps, goodluck.