99 mountaineer transmisssion shifting at 3000 rpms

[rgraham]

99 mountaineer auto transmisssion shifting at 3000 rpms. then runs and shifts fine all day long or untill it sets for a few hours. i thought it might be a temp isue but now that it is summer it still does it. the older models i would look at the modulator valve not sure what to expect from our new improved technolgy.