Charcoal Canister

Remove charcoal canister. Check for cracks or damage. Apply 7 psi pressure to port marked "V.C". There should not be any air leak from diaphragm.

Apply 15 in. Hg. vacuum to port marked "PURGE" and maintain. Gradually apply vacuum to port "V.C.". If the reading on the "PURGE" port goes down at pressure between 1.6 - 3.2 in. Hg., the purge control valve is good. If any problem is found, replace charcoal canister.