95 grand amjumps in and out of overdrive?

dont use OD unless you are travelling over 55 for more than a mile solenoid is under side cover of trans pain to fix. in town or stop and go use Drive or number 3 depending on display. Trans only has 3 gears OD locks torque convertor to give feel of another gear but it is still in 3rd gear with out any slip action. torque convertor in direct drive mode.