5.4L Misfire/Hesitation Issues
In trying to diagnose my own misfire or hesitation issues I've been doing quite a bit of searching on this website and the problems I'm having seem to be fairly common. That said, however, the answers sort of span several systems. I've changed plugs (Motorcraft OEM), COPS (Global) and plan on changing the fuel filter tomorrow but don't expect that to change much. When I first crank the truck the sputtering starts as soon as I put the truck in gear but then smooths out until under load (climbing a hill, accelerating, etc). Once under load it really begins to act up but once at speed it smooths out. I've checked and rechecked the cops/plugs and all seem good. Based on my search I'm thinking it could be the fuel filter, EGR Valve or MAF Sensor. Before I go changing parts (low on money right now) is there a process of elimination one can go through?
JBrew...you always seem to have some good insight so I'm all eyes and ears
Last edited by Bigwheel; 12-27-2010 at 08:57 PM.