I have a fresh TCI built TH400 in a 79 Firebird with a Lokar kickdown assy. The problem is that with everything adjusted correctly and 12volts at the switch/tranny connector when energized, the darn thing still will not kick down a gear.
I am checking by putting one meter lead on the connector and the ground lead on the tranny pan. 12 volts is present every time.
Any help would be appreciated. This is my first older car and I have had a great time building it up but this is throwing me for a loop.