So heres the deal, an 06 f250 game in customer says that after warming up wont start. checked icp reads 20-40psi when warm, after cooling off icp reads good. pulled the icp put air pressure in system could hear gurgling noise, pulled the branch tubes and dummy plugs, one had really bad o ring. replaced all 4 had to remove the high pressure rails to get the tubes out head. went to start icp comes up to 290 and just stops, swapped known good ipr,what are the odds that the bad as apposed to did I mess up an injector o-ring. With air pressure on it im not getting much air noise and theres not alot of it at the oil cap.