The valve I think you are refering to is located UNDER the air intake plenum. It is very difficult to see and impossible to reach without removing the plenum. If it is not hooked up or is hooked up wrong, while you are under the plenum replace all cooling system hoses and seals. David Teitelbaum vin 10757 --- In dmcnews@xxxx, "Eric" <ericp@xxxx> wrote: > Folks, I need help (or at least someone to tell me I'm not totally > insane!) > > I'm following the instructions of the seasoned D owners here o this > group. Trying to troubleshoot some problems, I was checking all of > the vacuum lines - following the chart in the engine compartment and > the pictures in the tech. manual. > > I found out that the vacuum lines do not all go where they are > supposed to. I'm trying to find the Thermal Control Valve (which > should be just to the right of the air intake plate assembly)... > > I can't find it. Moreover - the hoses that should lead to it, do not. > (this is why I went searching for it; I believe I have a spark > advance problem). > > Am I looking in the wrong place? Is it not exactly where the picture > specifies? Is it possible that it could have been removed - (and then > would the engine even run at all ??? which it does.) > > I know how this sounds, I'm really not that dense...but I just don't > see it. Any guidance or experience would be appreciated. > Thanks > > Eric > Vin# 5557 > > delorean@xxxx