It's your VGT Solenoid. Had the same problem in my old 05. Cost me about $90 on ebay for a new one shipped to my door. Took all of 10 minutes to install and it worked like a charm.
2006 F250 6.0L Powerstroke: 2008 interior, 2008 rear, 6.4L Banjo Bolts, Blue Spring, MKM Customs coolant filter, ELC, BPD EGR Cooler, ARP Headstuds, HFCM Drain Plug, Zoodad Mod, High Idle mod....needless to say its bone stock.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.