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TH400 kickdown switch wiring


warren55
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One of the many things I'm trying to figure out. The wiring has been butchered up, so I'm not sure what was there originally. I have the orange wire going to the solenoid in the transmission, but no power. It looks like there were originally more than two wires to the switch, but I would think all it would need is power to the switch and the wire going to the solenoid to work. I ran a jumper to it, checked the switch with a voltmeter and it's getting 12.5 volts to the solenoid wire when engaged but I don't hear any clicking.

I don't want to condemn the solenoid until I know I'm not missing something. Any other wires need to go to that switch?

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  • 2 weeks later...

It turns out that just because you can't hear it click doesn't mean it's not working. Hooked it up to power and took it for a drive, works fine! Probably because I just ordered a new one...

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