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Welcome, I'm Chris (aka Moose).
So if I understand in drive or reverse even at full throttle it just idles and will not increase rpm?
Hello Chris here again,
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You said: I have a 04 6.0 power stroke it idles fine but in gear it idles rough and no throttle response
I asked: So if I understand in drive or reverse even at full throttle it just idles and will not increase rpm?
I am still waiting on a response to this question from 9-10-17
Once warm in park does the engine respond correct to throttle applied?
Does runs rough mean you are feeling a misfire?
Is there smoke from the exhaust during this issue?
When cold does it operate fine?
Idling cold and idling rough. What is the ICP pressure reading at that time?
Will your scan tool run power balance test?