read a lot about the 1740 code but my 2000 ram 2500 4x4 has different symptoms it will shift when I first start out in the morning as it warms up it wont shift out of first gear unless I manually shift or if I start out at a red light or stop sign and I put it in neutral then drive shifts perfect till the next light any ideas

 

Drop the pan, clean or replace the governor pressure sensor/solenoid.

 

replaced them already ran good for a week

 

Need to find out what changes when it warms up then. Might be the output speed sensor as well. Got a scanner you can plug in, and look at live data while driving?

 

thinking torque converter or tcc od sensor but overdrive works fine rpm aren't jumpin around

 

what gets me is whenever I start off from a light if I hit neutral first truck shifts fine oh and I drilled out the one way ball

 

if I disconnect the battery the check eng light will go out but come back on after 20 or so miles

 

anybody? anything? is MONTEC out there

 

1740 is for TCC and O/D solenoid performance. Basically, the PCM is grounding circuits, but, not seeing the RPM drop it thinks it should. This is a separate issue from not wanting to shift when warm. Could probably fix that one simply by replacing the solenoid set. (well, 'simply' is a relative term here.)