Join Date: Oct 2008
Location: Medford Wi
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03 6.0 with miss while crusing & rough cold start
ok my 03 has developed a funny problem and i wanted to see what you guys think it is b4 taking it to the dealer. first off its getting cold here and mornings are around 30-35 degrees, when it is first started it runs rough with white smoke for about 30sec and then once high idle kicks in it kinda smooths out but if you try to drive to soon it goes right back to the rough idle. the next problem is after letting it warm up for 5 min or so when you drive there is a miss while crusing down the the highway not enough to change the rpm but you can feel it. the problem will continue no matter how long you drive it but after a while if you turn off the truck and restart the problem is gone. this works 80% of the time, what do you think the problem cound be? i am taking it in on tuesday to have the newest flash installed and they are going to go over everything else. since i have installed the edge the problem is not as bad if that makes sense to you, also do i need to remove the edge b4 taking it in for the reflash or can i leave it in? the truck is far from being under warrantee it has 177K on it.
2003 F250 SC LB 4X4 6.0 XLT, S & B Intake, Rough Country Leveling Kit, SCT X3, Edge Insight, Magnaflow exhaust
2008 Megacab SLT 4x4 6.7L Cummins auto, Banks ram air intake W/sooper scoop, Banks monster dpf back exhaust, Edge insight monitor.