In case the solenoid operates properly, the issue is most likely in the torque converter by itself. Should the solenoid isn't going to let air to movement, position it in the clear container of automated transmission fluid and electrically cycle it to view if you can take away any blockage https://torque-converter-clutch96396.bloguetechno.com/an-unbiased-view-of-torque-converter-clutch-69356842