At the same time, my torque converter stopped locking up, and my overdrive stopped working. Anyone have any ideas where to check first? I checked the sensor that tells the pcm when its in gear, had voltage when in gear. Checked the side of the transmission wiring and everything seemed there. Does anyone know where the transmission oil temp sensor is? I couldnt find it.
My pickup is a 92 dakota with a 5.2, 4x4

 

Just noticed cruise control doesnt work either. Im going to test my vehicle speed sensor tomorrow. I didnt notice until now that my speedo is mechanical but there is still a sensor built in.