pressure drops, repair fuel filler pipe as necessary. Repeat step. If pressure does not drop, perform
evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST .
If system passes, perform DRIVE CYCLES in SELF-DIAGNOSTICS - CNG, FLEX-FUEL &
GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is
performed.
UNABLE TO REFUEL VEHICLE
Crown Victoria, Grand Marquis, Marauder & Town Car
1. 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.
H2O (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, replace fuel filler pipe and check valve. Perform DRIVE CYCLES in SELF-DIAGNOSTICS -
CNG, FLEX-FUEL & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR
"BYPASS" CHECK is performed.
2. Testing EVAP System For Restriction
Attempt to pressurize system to 14 in. H2O (3.48 kPa). If system pressurizes, go to next step. If system
does not pressurize, remove tester from fuel filler pipe and install fuel filler cap. Perform evaporative
emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If system
passes, perform DRIVE CYCLES in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE
article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
3. Testing Canister Vent Solenoid Remote Vent Hose Assembly For Blockage
Disconnect canister vent solenoid remote vent hose from in-line connector. Pressurize system to 14 in.
H2O (3.48 kPa). If system does not pressurize, repair or replace canister vent solenoid remote vent hose.
NOTE:
Testing procedures are not available for Aviator, Econoline, Excursion,
Expedition, Explorer, Explorer Sport, Explorer Sport Trac, LS, Pickup,
Navigator, Thunderbird and Windstar.
NOTE:
After each service or repair procedure has been completed, reconnect all
components and perform DRIVE CYCLES in SELF-DIAGNOSTICS - CNG, FLEX-
FUEL & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR
"BYPASS" CHECK is performed. Clear DTCs and repeat QUICK TEST in SELF-
DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article to ensure all EEC-V
systems are working properly and DTCs are no longer present.
NOTE:
Enter this test only when all steps under QUICK TEST have been successfully
completed and unable to refuel condition still exists or if directed here from
another test or chart.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE System & Component Testing - Gasoline