Mark VII V8-302 5.0L HO (1986)
Canister Purge Control Valve: Testing and Inspection
Application of vacuum to Port B (only) should indicate no flow, valve should be closed; if not, replace valve.
After applying and maintaining 54 kPa (16 in.-Hg.) vacuum to Port A, apply vacuum to Port B. Air should pass; if not, replace valve.
Important: Never apply vacuum to Port(s) C. Doing so may dislodge internal diaphragm and valve will be permanently damaged.
