Should be same as Buick, not sure what years. Has a two pin connector and a single vacuum line connected through a big rubber manifold. I believe it is a bleed valve, bleeding the vacuum off before it gets to the EGR. Sits in the middle of the intake manifold. Haven't been able to find a source for a new one, would appreciate a used one (or a source I've missed).
thanks in advance
Dave
(BTW, hope its obvious from Before Black posting location but she's a 3.8L Buick engined 4 barrel Turbo Monte Carlo)
thanks in advance
Dave
(BTW, hope its obvious from Before Black posting location but she's a 3.8L Buick engined 4 barrel Turbo Monte Carlo)