Did all that, still no start. How long should it take to purge the air to the heads? Have cranked on it for quite some time, and even with a charger hooked to it, seems the batteries are still getting low, so I hooked up jumper cables to my other pickup.... There isn't some kind of fuel shutoff that might have tripped when it sucked a bunch of air??? As I am cranking, I am watching the exhaust, and no smoke at all coming out, which tells me no fuel getting in at all...