Unable To Refuel Vehicle: Mustang
WARNING: This page is about a different variant/trim than selected.
- Testing fuel Filler Pipe & Check Valve - Remove fuel filler cap. Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, go to next step. If PCM PID FTP V is not as specified, go to step 10.
- Testing EVAP System For Restriction
Attempt to pressurize system to 14 in. H2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, 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. - Testing Fresh Air Vent Hose For Blockage
Disconnect fresh air vent hose from fuel filler pipe inside trunk. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace fresh air vent hose. 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, go to next step. - Testing Fresh Air Vent Hose At Fuel Filler Pipe For Blockage
Disconnect fresh air vent hose at fuel filler pipe. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace fuel filler pipe. 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, go to next step. - Testing Tank Vapor Valve Assembly Fresh Air Tube For Blockage
Disconnect tank vapor valve assembly fresh air tube from canister vent solenoid vent hose. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace tank vapor valve assembly fresh air tube. 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, go to next step. - Testing Canister Vent Solenoid Hose Assembly For Blockage
Disconnect canister vent solenoid hose assembly at canister vent solenoid. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose. 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, go to next step. - Testing EVAP Canister Vent Solenoid For Blockage
Disconnect canister vent solenoid from EVAP canister. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. 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, go to next step. - Testing EVAP Canister For Blockage
Disconnect EVAP canister inlet elbow from EVAP canister. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. 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, go to next step. - Testing EVAP Canister Inlet Elbow For Blockage
Disconnect fuel vapor control valve tube from EVAP canister. Pressurize system to 14 in. H2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister inlet elbow. 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, go to next step. - Check For Pinched Fuel Vapor Control Valve Tube
Lower fuel tank about 3/4" (19 mm). If not already done, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, replace fuel vapor control valve tube assembly. 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 PCM PID FTP V is not as specified, go to next step. - Testing For Fuel Filler Tube Assembly Blockage
Disconnect tank vapor recirculation tube fuel filler pipe and plug both ends. Pressurize system to 14 in. H2 O (3.48 kPa). Remove plug from tank vapor recirculation tube. If pressure drops immediately, replace fuel vapor control valve tube assembly. 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 filler pipe. 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.