Thanks for the replies. Don't mean to ask so many questions. This car has been a learning experience!
Thanks. I've been through the switch - even bypassed it. Added new wires all the way down to the trans. Figure that at that point it's either the solenoid in the trans or a vacuum thing. My vacuum modulator is not locked in position. Was does turning it do?
What do you mean it isn't locked in position? It is being held in the transmission with a clamp and bolt, right?
It has a clamp and bolt, but I ca turn it. Does turning it do anything, or is the clamp simply to hold it in?
No, the clamp and bolt hold it in. Some people have been known to cross thread the bolt and break the case casting. I just wanted to make sure you didn't do that. Troubleshooting the kick down is very simple. If you are sure that 12 volts is being passed to the transmission by the gas pedal switch, check the down shift solenoid in the pan. Use a jumper wire from the battery + to the contact at the transmission. Listen for a click. No click, the solenoid is bad, or the wiring in the pan is bad.
could fubar the o-ring on it turing it but thats about it. I had mine held on by a bunji cord for a bit. th350/th400 vacumm mod is the same. Now if you got an adjustable one, you remove the vaccum hose and turn the screw that is inside the vacuum port nipple.
The solenoid was good. The switch - good. Turns out that it was the wire from the trans was grounding out and the wire from the fuse box was dead. Both wires! When this car was new, it had so many amenities that it practically talked to you as you went down the road, now I find myself talking to it!