I'm having a little trouble with a 2004 ford f150 5.4 originally it had the timing chain and phaser rattle but ran fine .tore it apart cam phaser on one side and guides on both cylinders was bad.put new timing chain and everything else and new phasers .put it back togather starts fine but has a hesitation from 500 to 1000 rpm.And a miss under a load going down road but it has no codes. what I'm wondering if it was a tooth out or out of time would it set off codes thanks