[truckvan]

My 1991 Ford E250 Truck 3 / 4 ton Van 5.8L Windsor FL 8, does not pull backward or forward. The transmission stopped working while driving at a speed of 40 mph, the engine starts well, and check the terminals of the solenoid valve body of the transmission, which gives me a reading of 20.4 ohms in four solenoids (shift solenoid1 , shif solenoid 2, converter clutch solenoid control, coast clutch solenoid) and 4.5 ohms in the remaining solenoid (electronic pressure control solenoid). But look at the problem here: the terminals of the sensor (sensor transmission oil temperature), which is integrated with solenoid valve body, gave me an open reading, is actually a thermistor and if in good or not very good condition should give me at least read ohms. Someone who has experience with this could help me ??????? What is the cause???? Sensor????