03 6.0 tow haul light
 

So my tow haul light will start flashing & when it does this my truck will not shift right, until I stop and shut the truck off. Don't throw no codes when I scan it??? Trans temp is normal, no check engine light... Could this be the solenoid sticking?

Yes it is very likely a sticking solenoid, when is the last time the trans was flushed and new filters and fluid put in??

About 30, 000 miles, I drop it off on Thursday to get it changed

Check out the GOGO direct solenoid, supposed to be the best
Go Go Diesel

Thanks!! Gonna check into it & hopefully have it fixed by the weekend

OD issue
 

I had that issue in my 00 and had it at the shop, ended up being a caromed terminal on one of the batteries, feeding the computer bad readings. Cleaned it tightened it and haven't had the problem once since that, 6 months ago, good to go
:jump:

I'm gonna check mine, just to make sure... Thanks

trans fluid temp sensor? did you run the codes?