EVAP Canister Purge Valve

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Mountaineer, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

EVAP canister purge valve is part of Enhanced EVAP system that is controlled by PCM. See Fig 1 and Fig 2 . This valve controls flow of vapors (purging) from EVAP canister to intake manifold during various engine operating modes. EVAP canister purge valve is a normally closed valve. The electronic EVAP canister purge valve controls the flow of vapors electronically by way of a solenoid thereby, eliminating the need for an electronic vacuum regulator and vacuum diaphragm. See Fig 3.

Fig 1: Identifying EVAP Canister Purge Valve (Escort, Focus, LS, Mustang, Sable, Taurus & Thunderbird)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying EVAP Canister Purge Valve (All Others)

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Electronic EVAP Canister Purge Valve (Focus 2.3L, LS & Thunderbird)

Courtesy of FORD MOTOR CO.