I have a 96 F150 with 4.9 L and 5 Speed Manual the problem is that when i drive on trip of 2 to 3 hours and shut off engine when i go to restart it, it will start very rough and act like it is not getting gas fore about 30 seconds of rough runing it will then start to run fine.

When i start truck in morning to do my driving around town or shorter trips it will run and start fine.

any help please. i need to make these long trips two times a month now, and the rough starts canot be good for the engine

Thanks ED

I live in Northern Michigan if that would make any differance.