6.0L Electronic Throttle Control issue
Bought a 06 f250 6.0L a week ago. While coming back from a ATV trip on the interstate I was going about 75mph up a hill. The truck went to down shift and when it did. The Electronic Throttle Control light came on and I lost a ton of power because the truck went into "limp Home mode." I pulled over and shut it off. Turned back on and everything was normal and the truck ran fine till it went to down shift again on a hill and the same thing happened. I babied it back home. Now the truck runs with no problems except that it is very sluggish off the line.
Any ideas what this could be or how to fix it. I've had the truck a week and it only has 85k on it. HELP!!