Hey,
I have a 1997 Dodge RAM 1500 that is experiencing shifting from overdrive to 3rd gear while driving at speeds over 50mph. It changes from overdrive to 3rd while minimal accerlation is occuring. Now, when you give it more gas, it stops and acts normal. Also, while the cruise control is engaged, the problem does not occur. Any thoughts? I was thinking it could be a relay or board that is linked to the cruise control.
BTW, The transmission is NOT slipping. Please let me know if you have any ideas.
Jeff