Ωhm Posted January 20 Share Posted January 20 The Cruise/Trans SW electrically is used by the Transmission Control Unit (TCU) for the purpose of disengaging the Torque Converter, when brake pedal is depressed. Quote Link to comment Share on other sites More sharing options...
pizzaman09 Posted January 20 Author Share Posted January 20 32 minutes ago, Ωhm said: The Cruise/Trans SW electrically is used by the Transmission Control Unit (TCU) for the purpose of disengaging the Torque Converter, when brake pedal is depressed. Ah, so I didn't need to fight for 10 minutes getting it plugged in as I have a manual. That explains why the valve that I got that came out of a manual truck didn't have the plug. Quote Link to comment Share on other sites More sharing options...
eaglescout526 Posted January 20 Share Posted January 20 Yeah I have seen that switch used for the transfer case and cruise control Quote Link to comment Share on other sites More sharing options...
pizzaman09 Posted January 20 Author Share Posted January 20 8 minutes ago, eaglescout526 said: Yeah I have seen that switch used for the transfer case and cruise control So you are saying it might disengage cruise if for instance the t case is not in high range? I'll have to test that. Quote Link to comment Share on other sites More sharing options...
eaglescout526 Posted January 20 Share Posted January 20 No. The vac portion on top only dumps vacuum when the brake pedal is depressed and disengages cruise control. As for what it does with a t-case, i don't know. My MJ isn’t equipped with 4wheel drive and my XJ doesn’t have cruise. Quote Link to comment Share on other sites More sharing options...
pizzaman09 Posted Wednesday at 02:24 AM Author Share Posted Wednesday at 02:24 AM Good news today, the roads were dry enough to drive the truck and test the cruise control, it works! It does need to be tuned as the variation and aggressiveness is hilarious. In bad news today, my clutch stopped working. Pedal goes to the floor yet the master cylinder is full. I suspect it might have a collapsed soft line that isn't allowing fluid to move to the slave cylinder. Quote Link to comment Share on other sites More sharing options...
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