Need to replace Solinied Switch, which is stage Top of Transmission Power Supply box, Solinied Switch didn't hold power supply properly. i had problem one year like this my Dodge Caravan Minivan which is Driveing 178000 Mile on it RPM 4800 when speed 70 MPH and Delar Machanic telling me need to Replace Transmission, which is cost $1800.
as soon i Replaced Solinied Switch Cost was $289 include parts and Labor, now RMP 2000 on Driveing 70 MPH.