Ford F150 Pickup. Instruction - part 1360

13. Testing EVAP Canister Inlet Elbow Tube 

 
Disconnect fuel vapor valve tube assembly from EVAP canister inlet elbow tube. Pressurize system to 14 
in. H2O (3.48 kPa). If pressure drops immediately, replace EVAP canister inlet elbow tube. 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. If pressure does not drop immediately, replace fuel vapor valve tube assembly. 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.  

Sable & Taurus 

1. Testing EVAP Canister & Canister Vent Solenoid Flow - Connect Evaporative Emissions System 

Leak Tester (134-00056) to test port. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops 
immediately, EVAP canister and vent solenoid are not blocked, go to step 8 . If pressure does not drop 
immediately, go to next step. 

2. Testing Canister Vent Solenoid Hose Assembly For Blockage 

 
Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H2O (3.48 kPa). If pressure 
drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system 
leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST . If pressure does not drop 
immediately, go to next step. 

3. Testing Canister Vent Solenoid For Blockage 

 
Remove canister vent solenoid. Canister vent solenoid is on EVAP canister under rear of vehicle near fuel 
tank. Pressurize system to 14 in. H2O (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 CYCLES in SELF-DIAGNOSTICS - 
CNG, FLEX-FUEL & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR 
"BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step. 

4. Testing EVAP Canister 

 
Disconnect EVAP canister tube at canister that runs from EVAP canister to fuel tank. Pressurize system 
to 14 in. H2O (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 CYCLES in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE 
article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If 
pressure does not drop immediately, go to next step. 

5. Testing EVAP Canister Tube 

 

 

2003 Ford Pickup F150 

2003 ENGINE PERFORMANCE System & Component Testing - Gasoline

  

Disconnect EVAP canister tube at fuel vapor valve tube assembly that runs from EVAP canister to fuel 
tank. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops immediately, replace EVAP canister 
tube. 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. If pressure does not drop immediately, go to next step. 

6. Testing EVAP Canister Purge Outlet Tube 

 
Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly that runs from EVAP 
purge valve to fuel tank. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops immediately, go to 
step 8 . If pressure does not drop immediately, go to next step. 

7. Testing Evaporative Emissions Test Port 

 
Disconnect evaporative emissions test port from EVAP canister purge outlet tube. Pressurize system to 14 
in. H2O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. 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. If pressure does not drop immediately, replace evaporative emissions test port. 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. 

8. Testing Fuel Vapor Valve Tube Assembly 

 
Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly. Connect EVAP tester to 
fuel filler tube. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops immediately, reconnect all 
components. 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. If pressure does not drop immediately, replace fuel vapor valve tube 
assembly. 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.  

EXCESSIVE FUEL ODOR 

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.

 

2003 Ford Pickup F150 

2003 ENGINE PERFORMANCE System & Component Testing - Gasoline

  

Aviator, Blackwood, Econoline, Escape, Expedition, Excursion, Explorer, Explorer Sport, Explorer Sport Trac, F250-
550 Super Duty Pickup, Mountaineer, Navigator, Ranger & Windstar 

1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLES in SELF-

DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. Ensure PENDING CODE CHECK & 
EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P0456, P1443 or 
P1450 are retrieved, see EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE 
DEFINITIONS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article for appropriate 
test procedure. If any other PCM DTCs are retrieved, see DIAGNOSTIC TROUBLE CODE 
DEFINITIONS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article for appropriate 
test procedure. If no PCM DTCs are retrieved, go to next step. 

2. 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. 
H2O (3.48 kPa). If pressure drops immediately, 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. If pressure does not drop immediately, 
go to HISSING SOUND WHEN REMOVING FUEL CAP . 

3. Testing For Restriction Between Fuel Tank & EVAP Canister 

 
Move EVAP tester to fuel filler pipe. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops 
immediately, 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. If pressure does not drop immediately, go to next step. 

4. Testing EVAP Canister Tube Or Fuel Vapor Vent Valve Blockage 

 
Disconnect fuel vapor vent valve from EVAP canister tube. Pressurize system to 14 in. H2O (3.48 kPa). 
If pressure drops immediately, replace fuel vapor tubes between fuel tank and EVAP canister and/or 
EVAP canister tube. 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. If pressure does not drop immediately, replace fuel 
tank. 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.  

Crown Victoria, Focus, Grand Marquis, Marauder, Sable, Taurus & Town Car & ZX2 

NOTE:

Enter this test only when all steps under QUICK TEST have been successfully 
completed and when excessive fuel odor still exists or if directed here from 
another test or chart.

 

2003 Ford Pickup F150 

2003 ENGINE PERFORMANCE System & Component Testing - Gasoline

  

1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLES in SELF-

DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article. Ensure PENDING CODE CHECK & 
EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTC P0442, P0455, P0456, P1443 or 
P1450 is retrieved, see EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE 
DEFINITIONS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article for appropriate 
test procedure. If any other PCM DTC(s) are retrieved, see DIAGNOSTIC TROUBLE CODE 
DEFINITIONS in SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article for appropriate 
test procedure. If no PCM DTC(s) are retrieved, go to next step. 

2. Testing Evaporative Emissions Test Port Through Canister Vent Solenoid 

 
Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. 
H2O (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 . 

3. Testing EVAP System Between Fuel Filler Pipe & Canister Vent Solenoid 

 
Move EVAP tester to fuel filler pipe. Pressurize system to 14 in. H2O (3.48 kPa). If pressure drops 
immediately, 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. On Focus and ZX2, if pressure does not drop immediately, go to 
HISSING SOUND WHEN REMOVING FUEL CAP . On all other models, if pressure does not drop 
immediately, replace fuel vapor valve tube assembly. 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.  

F150 Pickup 

1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLES in SELF-

DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE 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 - CNG, FLEX-FUEL & GASOLINE article for appropriate test procedure. If any 
other PCM DTCs are retrieved, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-
DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE article for appropriate test procedure. If no PCM 
DTCs are retrieved, go to next step. 

2. 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. 
H2O (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 . 

3. Testing For Restricted EVAP System Between Fuel Filler Pipe And Canister Vent Solenoid 

 

 

2003 Ford Pickup F150 

2003 ENGINE PERFORMANCE System & Component Testing - Gasoline