valves on 1994 Chevrolet S10

where is the egr valve in my truck?

Asked by for the 1994 Chevrolet S10
There was a recall and several technical service bulletins 96067(A) issued back in 1997, regarding EGR problems on your engine.
It is located in the Valley of the engine at the back secured by two nuts with a vacuum hose or electrical connector attached to it depending on which type of valve is fitted.