that's exactly what it is, a thermo valve (blue/black in color and circular with two inlets) -vac line going to the intake manifold and the other connected to a short hard little white vac tube with an elbow vac line connector that goes down to the areas where the thermostat,water pump,etc is. Is the EGR valve anywhere in this area and should I connect this to it? I'm tempted to just plug it but want it to run right and its getting "personal". Sorry to bug you so much because I'm frustrated with this mess myself... your advice is really appreciated!!!!