robmcallan
Active Member
having shifting issues the truck will only shift into any higher gears then 1st when only going down hill. in automatic and when trying to manually trying to shift gears. but am able to manually shift gears in reverse and they work proper. There is no codes coming up on the TCU. leaning towards a speed sensor but was hoping to get a code of some sort. or does anyone know what kind of rpms the trans is looking for before it wants to shift?