<<Problem, the cold start valve does not open while cranking>> Here's the latest. My +12 is fine, it looks to be the ground portion of the circuit. When I Jumper out the temp sensor (which seems fine - has continuity) the valve still does not open, but when I jump the blue black wire at the temp sensor connector to ground the valve works normally. I'm confused a bit, why does white/Red run to the thermotime switch anyway? The switch has its own ground through the waterpump to the engine. When cold this ground should complete the circuit for the cold start valve. Why is White/red even here? Further, the diagram indicates that white/red and blue/black run to the cold start valve first, then continue on over to the thermotime switch. I understand that the white/red from the starter must reach a splice point where is splits to both the valve and the switch (though as per above I have no idea why it goes to the switch) and that Blue black similarly splits to both devices before it runs back to ground. If I'm going to find bad wiring, these splice points seem to be key, but they are not at the valve per se as indicated, where are they? I just know I've missed some crucial point here, and I'm due for a school'in. This should be simple, and probably is - but I'm not getting something... Tom To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/