Fraser Posted April 16, 2020 Share Posted April 16, 2020 2008 Granite with MP8. Two times in last 3000 miles. Both times while truck was idling, Would start running a little rough. I take off and within a mile, truck is spit and sputtering like dirty filters or air in lines. I pull over, shut down, look over everything, fire back up and take off. Truck is running perfect. Again, this happened a few months ago and again yesterday. Today perfect. Any ideas ?? thanks Quote Link to comment https://www.bigmacktrucks.com/topic/62100-mp8-fuel/ Share on other sites More sharing options...
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