Try Seafoaming it, cleaning the Throttle position sensor, EGR valve (make sure when you take it out you replace the gasket, should be like $2), add an oil cooler, snorkel (for cold air intake purposes if nothing else), less restrictive exhaust system (Borla makes a good cat back system), there is a number of things you can do depending on how much you are able to invest in it, but I would start by cleaning the sensors and seafoaming to get as much carbon buildup etc. out as possible so that nothing is more restricted than it was when the Truck was new... http://npora.ipbhost.com//style_images/1/f...icons/icon1.gif