Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 replies (of 1 total) Author Replies January 10, 2021 at 8:35 pm in reply to: Valve Adjustment: Now a sucking sound #988069 K EdwardsParticipant I found the issue. Using a auto repair stethoscope I found the the EVAP purge control solenoid is knocking after the engine gets warm. It is attached to the intake manifold and must have been damaged when removing the manifold. Author Replies Viewing 1 replies (of 1 total)