4l60e no 3rd gear in drive
EDIT: I have a better 2nd thing to check; see below.
Unless someone has the answer, I would next remove the servo and check it for miss-assembly or a bad seal.
Next, I would remove the HD2 "Gear command" feature and restore the original 1-2 shift valve. Yes, I know it is the "1-2 shift" valve, but installing the HD2 kit does not involve removing/changing any of the 3rd of 4th gear shift valves. I admit this is grasping for straws so hopefully it is something simpler.
Last edited by mrvedit; Aug 30, 2014 at 01:29 PM.






