EGR Valve Functional

Start engine and allow to idle. Disconnect vacuum hose from EGR valve. Connect hand-held vacuum pump. Apply at least 6 in. Hg. If engine dies and vacuum holds, EGR valve is functioning properly. If engine does not die and vacuum does not hold, replace EGR valve. If engine does not die but vacuum holds steady, remove EGR valve. Check for plugged valve or passages. Clean or replace as necessary. On fuel injected models, if PGM-FI light is illuminated, proceed to appropriate article in the COMPUTERIZED ENGINE CONTROLS section.