You do not find the valve because it does not have it, your car is diesel and the problem you comment is painted by an air intake in the diesel aspiring circuit.
Something similar happened to me with another 1.8 TD escort, which started, worked a second and stopped, then you would get around the engine with the start until the diesel came. Before that happened, it was beginning to do strange things and it was hard for him after a long time with the engine stopped (one day the next day)
Solution:
1st Look at status of heating (sometimes the heater are burned and after the first seconds after starting the engine they continue to heating the compression chambers)
2nd Looking at the pump dosing servomotor, it is an electric motor that is on the left. A steel cable that binds to one of the pump controls (cold dosage and with the AC on). If the cable is not tense or the servo has died, the engine falls short of cold diesel and tends to stop, apart from the fact that with the air conditioning on it does not go down or down).
3º Examine the diesel tubes (and the filter itself) in search of rare things. And if you can replace them with rubber tubes, since the rapid plugs of \ "olive \" that carries your car are shit and ends up taking air for them. And if you can mount an anti -background valve in the aspiration tube almost better.
Greetings and you will tell me something.
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