I'm kind of new to power stroke. Been an experience so far. Lol. I have a od problem I can not figure out. When I first start my truck, it runs rough. It like it's running out of time. But if I let it run for a minutes, shut it off, the start it back up, its smooth and like a new truck. I notice it bucks some times and shutters at about half throttle when I'm cruising along. I just replaced the ficm power supply to fix it and it runs better but still have the first rough start. It's also a long crank and it sounds like its is about to turn a couple times before it actually does. Any ideas?