Love the truck people notice my Harley 350 cause it looks a little different and sounds nice with the Magnaflow exhaust.. The part the makes me #@%$# last weekend I was pulling my car hauler with the Jeep to a Off Roading weekend thing. It was hot around 85 I noticed this dash idiot light showing a wrench called the dealer they said the truck doesn't like something that's going on and this light might go off. We pulled in a rest stop and had a bite to eat came out started the truck. the light was out so we ran the rest of the trip with no air the light stayed off. Coming home yesterday it was cooler we didn't need the air but this light came back on, next the Check engine light came on. The rest of the trip really sucked hardley any boost no pick up seemed to be louder then normal. Dropped off the trailer seems to be running ok boost is up check engine light is still on. Just a note I had the EGR valve replaced Feb 2010 for similar problem, then April 2 2010 getting black smoke, stalling , EGR replaced again they said they cleaned the manifold a big piece of soot came off and plugged the EGR. I have 81450 mi I'm the org owner.I don't like seeing the dealer every 2 months I drive 70 mi a day and I have been getting on it putting the pedal down daily like a few people suggested in some of my earlier posts . I'd trade it in but its paid off and seems like almost everyone Ford & Dodge is having similar problems with their diesels. Any suggestions are appreciated before I see the dealer tomorrow.