The engine turns over but it just wont start.. It needs water pump i have the parts and tools to do it but i wan to get it to crank first.So I filled the radiator and drove it to the gas station and then as soon asI filled it up and pulled off the car just cut off. I had to push it to the house. I've heard about main fuel relays going out but it looks like a new was already in there. Any advice?

 

Turn off things like radio & blower. Turn the key to "ON" (not start) & listen for the fuel pump to run for 2 seconds then stop. Its not really loud, so maybe have someone listen near a rear wheel. If it runs, then your main relay is OK.

So your starter cranks - then you have to figure out if its missing spark or missing fuel.

Take off the rubber duct to the throttle body. Spray some starting fluid or brake cleaner into the TB while trying to start. If it sputters & tries to start, then your spark is OK.

Try those things & come back with results - depending on what happens, someone will have the next step for you to check.