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Message: [QUOTE="Extended Power, post: 1515481, member: 898"] The other day I was driving up a hill, and the transmission shifted into 5th locked. This caused the engine to fall under the turbos, so I hit the tow/haul button to downshift. Truck downshifted to 4th locked, but was still not enough rpm to get the turbo lit. (Just under 2200 rpm, and I didn't want to hammer on it.) So I grabbed the gear lever, and dropped down to 3rd, and everything seemed fine, rpm went up, boost went up, mph went up. Once I was up to speed, I put the gear selector back into "D", and the truck shifted...but, I was watching the Edge monitor 2 display, and noticed that the gear indication was changing from 5 to 2 to 3 to 1, to 4....you get the idea... Even though the transmission wasn't shifting, the monitor did not know what gear it was in. So I continued on home, and after the first corner I turned, I realized the transmission was stuck in 4th gear. Got home, shut it off, went in for supper. Came out a couple hours later, and decided to re program the same tune back into it. Start the truck, back out of the driveway, put it in "D", and.....I'm stuck in the middle of the street...it's like the brakes are on. Again, reverse works good, but locked in 4th or 5th when going forward. While driving home, I also tried to manually downshift again, and no change at all, even when I put it into 1st gear at a stop. It's a 2003 Ford 6.0L f350, running Eric's Xtreme tune. I haven't hammered on my truck at all lately, and this is a tune that I have run from over two years ago with no issues. Codes pulled: P0046 P0098 P0403 P0603 P1000 U0306 Any help would be greatly appreciated. Thank you. Ivan [/QUOTE]