2007 Eaton Gen 3 Automatic Transmission

How did the actual designation for the fault code read?
Usually after a fault code is triggered the computer puts it in to inhibit mode to protect the transmission so it would be odd to be inhibited without a code being set?
Do you have the capability of reading the system to see if it is actually in inhibit mode?

 

Typical fallback I have seen in the past with this issue is flashing of the commanded gear on the gear display. Once gear is attained number will go steady. No faults logged.

 

I think from what you are saying the inertia clutch is not holding effectively and stoping the shaft for engagement.
If when you are able to get it in gear and then slip it in neutral if the clutch was dragging the input shaft should start to spin and it should not go back in gear.
But it seems that you can return it to neutral and back into gear with out a problem as long as you don’t rev it up?
I would also think if the clutch was dragging that bad the input shaft rpm would be a lot closer to engine idle rpm not the low 150 rpm input shaft speed you are seeing.

 

Whats the mileage on the trans...?

Whats the mileage on the X Y shifter.?

 

From what you've said it sounds like the X Y shifter... most go out around 800k

 

just want to point out that NO ONE makes a automatic transmission for a class 8 truck..

Its a AUTOMATED transmission.. as in a standered 10 speed with a computer to control the shifter and clutch

 

Sure they do........Allison