remember in my earlier post about the fuel pump relaymay be intermittently not working which would cause long crank time till the oil sender see's pressure it turns on the fuel pump power circuit. locate fuel pump relay and have test light or multimeter reading wnd when con ern happens to test if relay is sending power to and if not don't forget to check the primary side of relay to make sure it is getting signal to turn on relay. remember to use wiring schematic to chack the correct circuits. please post results, john