Fraser

Truck is 08 Granite, mp8, egr deleted. Has a slight drip at top of exhaust pipe. Fluid is yellowish and has no odor. Barely enough to wipe up but it’s there. Thought possibly egr cooler cracked , pulled it off and pressure tested, seemed fine. Truck runs great, no smoke. Any ideas ?

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