[1985GN]

pkok so let me ask this then.....my tranny is fairly new but i dont thinmk the solenoid was ever replaces. when our cars are ion OD and you drive down the highway if you tap the brake lightly the rpms raise a litle bit. well mine does that on its own every so often. it seems like is locking and unlocking or something. could this be a reason for that? if i unplug the TCC will i notice a difference to tell if thats the prob? thank guys