Re: 2000 Ford Windstar check engine light
vaccum leak, mine was on the lower prot seal on the lower half of the intake plenum. Dorman makes a complete kit part # 615-177 that has new Valve cover and gasket, port seals(6), TB gasket, IAC gasket, isolator bolts (8), intake gasket(where the upper and lower plenum split. i just got done with mine, pretty easy.hope that helps!!