Ford 2003 Mustang Workshop Manual page 2166

Pressurize the EVAP system to 3.48 kPa (14
inches H O).
2
Does the pressure drop immediately?
E12 TEST FOR BLOCKAGE IN THE FUEL VAPOR
CONTROL VALVE TUBE ASSEMBLY—FRESH AIR
TUBE
Disconnect the fuel vapor control valve tube
assembly—fresh air tube from the canister vent
solenoid vent hose.
Pressurize the EVAP system to 3.48 kPa (14
inches H O).
2
Does the pressure drop immediately?
E13 TEST FOR BLOCKAGE IN CANISTER VENT
SOLENOID HOSE
Disconnect the canister vent solenoid hose from
the canister vent solenoid.
Pressurize the EVAP system to 3.48 kPa (14
inches H O).
2
Does the pressure drop immediately?
assembly. REFER to Section 310-
01 . 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 in this section.
No
GO to E12 .
Yes
INSTALL a new fuel vapor control
valve tube assembly—fresh air tube.
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 E13 .
Yes
INSTALL a new canister vent
solenoid hose. 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 in this section.
No
INSTALL a new canister vent
solenoid. REFER to Evaporative
Emission Canister Vent Solenoid
this section. 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
in this
in