I rebuilt my transmission and I installed a Transgo shift kit, and now my Dodge Cummins 2001 2WD runs everything except to D,2,3,4. I also have installed Goerend triple torque converter.

I called the Transgo customer service and they advised me to put a gauge on the solinoid port. The gauge read zero and he told me to blow the port with air and then find the leak. Unfortunately, I could not find a leak.

This problem really has me stumped and I could really use some help.

Thank you!