Need to replace Solinied Switchsolenoid switch, which is stageon Top of the Transmission Power Supply box, Solinied Switch. The solenoid switch didn't hold power supply properly. iI had this problem onefor a year like this my Dodge Caravan Minivan which is Driveing 178000has 178,000 Mile on it RPM 4800 when speed 70 MPH and Delar Machanic. A Mechanic was telling me need to Replace Transmissionreplace the transmission, which is cost $1800. as
As soon i Replaced Soliniedreplaced solenoid the issue was resolved and now the RPM's are about 2000 at 70MPH.
Switch Cost was $289 include parts and Labor, now RMP 2000 on Driveing 70 MPH.