i can start the car up fine but if i go in the store 4 abt 5-10mins and try to start it bck up it wont it, takes abt 25min but .if go in the moves for abt 1hour maybe 2 it starts right up is that a main relay

 

When it happens turn your radio off and then turn the key only to the acc position and listen. You should hear a quiet groan like sound, that is your fuel pump priming/building pressure. If you don't hear it then there is a good chance it is your main relay.