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the truck is an 04 cc/sb 4x4 xlt auto with 111,000 miles... all stock, except for a bully dog intake does not have arp's no signs of a chip or gauges.. the truck has a ton of power but seems very lagy.. if you punch it from any speed it doesnt snap at all, seems like turbo lag but very extreme, alot more than my 7.3.. once it gets going it pulls like a raped ape and shifts smooth. doesnt smoke at all. any ideas on what this could be? it also has white residue on the coolant bottle, im assuming its old because i beat the hell outta it for a half hour and it ran the same and didnt over heat or over flow any coolant. im assuming this was from a past egr problem? any help would be appriciated.