Following is a listing of vacuum diagrams for most of the engine and emissions package combinations covered by this information. Because vacuum circuits will vary based on various engine and vehicle options, always refer first to the vehicle emission control information label, if present. Should the label be missing, or should the vehicle be equipped with an engine other than original equipment, refer to the diagrams below for the same or similar configuration.
If you wish to obtain a replacement emissions or vacuum label, most manufacturer's make these labels available for purchase. They can usually be ordered from a local dealer.
See Figures 1 through 8