Ford 2003 Mustang Workshop Manual page 2171

Pressurize the EVAP system to 3.48 kPa (14 inches
H O).
2
Does the pressure drop immediately?
F9 TEST FOR BLOCKAGE IN CANISTER INLET
ELBOW
Disconnect the fuel vapor control valve tube
assembly from the evaporative emissions canister
inlet elbow.
Pressurize the EVAP system to 3.48 kPa (14 inches
H O).
2
Does the pressure drop immediately?
F10 TEST FOR PINCHED FUEL VAPOR CONTROL
VALVE TUBE
Lower the fuel tank 19.05 mm (3/4 inch).
Connect the Evaporative Emission System Leak
Tester to the fuel filler pipe.
Close the canister vent solenoid. Refer to
Vent Solenoid Closing Procedure
Pressurize the EVAP system to 3.48 kPa (14 inches
H O).
2
Is the FTP (FTP V) PID reading 3.11 kPa to 3.86
kPa (12.5 to 15.5 inches H
volts)?
F11 TEST FOR BLOCKAGE IN FUEL FILLER TUBE
ASSEMBLY
Disconnect the tank vapor recirculation tube from
the fuel filler pipe and plug both openings.
Canister
in this section.
O) (4.22 to 4.90
2
Evaporative Emission Canister
this section. CARRY OUT a leak
test. REFER to Evaporative
Emission System Leak Test
section. If the system passes the
leak test, CARRY OUT the
evaporative emission repair
verification drive cycle. REFER to
Evaporative Emission Repair
Verification Drive Cycle
section.
No
GO to F9 .
Yes
INSTALL a new evaporative
emissions canister inlet elbow.
CARRY OUT a leak test. REFER to
Evaporative Emission System Leak
Test in this section. If the system
passes the leak test, CARRY OUT
the evaporative emission repair
verification drive cycle. REFER to
Evaporative Emission Repair
Verification Drive Cycle
section.
No
GO to F10 .
Yes
INSTALL a new fuel vapor control
valve tube assembly. REFER to
Fuel Vapor Control Tube Assembly
Valve in this section. CARRY OUT a
leak test. REFER to Evaporative
Emission System Leak Test
section. If the system passes the
leak test, CARRY OUT the
evaporative emission repair
verification drive cycle. REFER to
Evaporative Emission Repair
Verification Drive Cycle
section.
No
GO to F11 .
Yes
INSTALL a new fuel vapor control
valve tube assembly. REFER to
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