Initial Inspection and Diagnostic Overview

Important: Disconnect the hoses/pipes from the EVAP canister and the EVAP purge valve before applying compressed nitrogen.

Disconnect the vacuum source line at the purge valve and the manifold vacuum source. Remove the EVAP purge valve. Disconnect the purge line at the canister. Inspect all of the hoses/pipes/components for contamination. If a component is malfunctioning due to contamination, the component must be replaced. Contamination of the hoses/pipes should be blown out with compressed nitrogen from the EVAP pressure/purge cart J 41413.

If carbon contamination of the system is evident, replace EVAP canister.