Hard Startig when hot?
I'm wondering if it is a fuel related problem. I notice that some cars will start up better if you turn your ignition switch to the on position for a couple seconds first, then to the start or run position. What this does is allows your fuel pump to energize and build up the required fuel pressure in the fuel line to start the engine. Some fuel systems will retain the fuel pressure in the fuel line much longer than others after the engine is turned off. When the engine is hot, I would think that it would lose fuel pressure more rapidly through evaporation than it would when it is cold. I would say for those of you who are experiencing these same symptoms, get the fuel pressure test gauge kit that Ford sells, and check you fuel pressure at your fuel rail when the engine is cold, and when is hot, to see what the difference in pressure is. Not sure what the values are, however, after your engine is turned off from running, it is suppose to hold a specified amount of fuel pressure for a given amount of time. If your fuel pressure in the line drops down too quickly, that would indicate a problem in the system. I will do some checking to see what the values are and post it here if I find something. If someone already knows what those values are, perhaps they can also post it here. For those who are experiencing these same symtoms, perhaps you would try turning your ignition switch to the on position for a couple of seconds first, then try starting your engine after that. If your engine starts up right away, then you know that your problem is fuel related. Let us know what your results are. Thank you and good luck, Tommy.