Engine is hard to start up on 2004 Ford F-250 Super Duty

engine is hard at starting it wont start after you had run it for a while you need to let it cool down for 30 minutes. The oil level on the pressure on the gauge doesn't go up but then after a while of cranking the engine the oil level pressure goes up and then the trucks starts. It has a new Oil pump,ICP sensor,IPR valve,and has new fuel and oil filter

Asked by for the 2004 Ford F-250 Super Duty
1 answer
I CHANGED MY FUEL FILTERS AND IT HELPED A LOT. BE SURE TO PUT NEW O-RINGS ON FILTER CAPS.