System Tests (Evaporative Emission): Notes

WARNING: This page does not describe the selected car, but rather 32 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.

NOTE: Prior to performing any system test, see HOW TO USE SYSTEM TESTS under SYSTEM TESTS. If instructed to replace Powertrain Control Module (PCM) after performing a system test, new PCM must be programmed. See PROGRAMMING PCM .

Perform these tests when instructed during QUICK TEST or if directed here from another article or from DIAGNOSTIC TROUBLE CODE DEFINITIONS . Perform appropriate evaporative emission system test. See EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE DEFINITIONS . For emission-related symptom tests, see EXCESSIVE FUEL ODOR , HISSING SOUND WHEN REMOVING FUEL CAP or UNABLE TO REFUEL VEHICLE under EVAPORATIVE EMISSION SYSTEM TESTS in SYSTEM & COMPONENT TESTING - GASOLINE article.

NOTE: To identify EVAP system components, see appropriate illustration. See Fig 1 -Fig 8 .

Fig 1: Identifying EVAP System Components (Aviator, Explorer & Mountaineer)

Courtesy of FORD MOTOR CO.

Fig 2: Identifying EVAP System Components (Blackwood, Econoline, Excursion, Expedition, Explorer Sport, Explorer Sport Trac, "F" Series Pickup, Navigator & Ranger)