HELP.... I have a real problem on my hands, the beast just will not pass smog check, this is do to a vaccum leak. My question, Does anyone know where to get the diograms for these damn air lines? I already changed the exhaust manifold and it's gasket.... The EGR valve tested good. HELP :confused: 1977 maverick Stright 6 250 factory.....
We need the year, the engine to begin with. Even then, it is how it was equipped from the factory can be different for the options and the part of the country it was sold in.
