Originally Posted by Mill
I'm assuming it will unlock to shift under most circumstances? I wonder if the TCU would even let the transmission shift knowing that the torque converter is locked up (manually).
I'm basing what little experience I have on this from jeeps. There are shift mods to lock the torque converter in I believe any gear. If you locked it at idle it would obviously stall the motor as if you were letting a clutch out.
yep my sunbird would stall instantly.
however the tcc was not vailiable when in manual 1st gear. this is a limp home thing incase the soloinoid got stuck on.
my question is the 05-07 valve bodys would have the tcc not hydraulically availiable while in first or second gear through mechanical means.