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Message: [QUOTE="stroker_colony, post: 1479442, member: 28750"] I have a 99 f350 7.3 4r100 trans I installed the lockup switch today. It's nothing fancy, I just tapped into the wire from the TCC solenoid and the PCM and ran that to a switch and ran a ground wire to the switch to ground out the signal and lock the torque converter up and it works fantastic. But my OD Off light flashes. I've heard that these trucks do that to tell you your TC is slipping or going out, or is it more likely just because I'm blocking the signal to the TCC solenoid? And if it's just because of the blocked signal is there some sort of override or resistor I can install, not a fan of the flashing. Also anyone with experience with these. Can you tell me of a way to override the switch when the trans is trying to shift? I know that people have been able to do it I just need pointed in the right direction. [/QUOTE]

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