F150 Pickup
WARNING: This page is about a different variant/trim than selected.
- Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLE PROCEDURE under DIAGNOSTIC MONITORS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P1443 or P1450 are retrieved, see EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article for appropriate test procedure. If any other PCM DTCs are retrieved, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article for appropriate test procedure. If no PCM DTCs are retrieved, go to next step.
- Testing For Restriction In EVAP Test Port Through Canister Vent Solenoid
Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, go to HISSING SOUND WHEN REMOVING FUEL CAP . - Testing For Restricted EVAP System Between Fuel Filler Pipe And Canister Vent Solenoid
Connect leak tester to fuel filler pipe. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURE under DIAGNOSTIC MONITORS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor vent valve. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system passes, perform DRIVE CYCLE PROCEDURE under DIAGNOSTIC MONITORS in SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.