Originally Posted by BWilcox

Hey guys, I was having some issues with my transmission. I have a 2004 f-350 6.0 with a automatic transmission. My original transmission went bad so I got this one and it’s from a 2005 f-450 I used all my sensors and wiring from my old tranny.I got it put in, it reversed good and I started to drive forward and got maybe 50 yards and the tow haul light started blinking, it idled just under 1000 RMPS and has a hard time shifting. I ran codes and I got a p0720 output speed sensor insufficient input. I thought it was the sensor so I replaced it and the same thing happens, is there anything that changed like maybe it’s not the correct sensor? Does my truck need to be reflashed so it will talk? Any help would be great, thank you

Originally Posted by Hopebccanada

Hi I'm having the same problem with my 2007 f350 6.0l powerstroke diesel just wondering if you were able to figure out what was wrong cause I'm at a loss for words and don't know what else to do so any help would be appreciated thank you

Originally Posted by Yahiko

You will get more traction on this question if you start a new thread.

Originally Posted by Hopebccanada

thank you very much