Ford Freestar 2004 - Pinpoint Test E: Excessive Fuel Odor

PINPOINT TEST E: EXCESSIVE FUEL ODOR
INSTALL a new fuel vapor hose. CARRY OUT the evaporative emission system 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.
Test Step Result / Action to Take
E1 TEST THE EVAPORATIVE EMISSION
(EVAP) RUNNING LOSS SYSTEM MONITOR
 Complete the evaporative emission repair
verification drive cycle. Refer to
Evaporative Emission Repair Verification
Drive Cycle in this section.
 Are PCM DTCs retrieved?
Yes
For DTC P0442, P0455, P1443 or P1450, REFER to the Diagnostic Trouble Code Index in this section. For
all other DTCs, REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis of
DTCs.
No
GO to E2.
E2 TEST FOR RESTRICTIONS IN THE EVAP
SYSTEM FROM THE EVAPORATIVE
EMISSION TEST PORT THROUGH THE
CANISTER VENT SOLENOID
 Connect the Evaporative Emission
System Leak Tester to the evaporative
emissions test port.

Attempt to pressurize the EVAP system to
3.48 kPa (14 inches H
2
O).
 Does the pressure drop immediately?
Yes
CARRY OUT the evaporative emission system 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. GO to E3.
No
GO to Pinpoint Test D.
E3 TEST FOR A RESTRICTED TUBE
BETWEEN THE FUEL TANK AND THE
EVAPORATIVE EMISSION CANISTER
 Connect the Evaporative Emission
System Leak Tester to the fuel filler pipe.

Attempt to pressurize the EVAP system to
3.48 kPa (14 inches H
2
O).
 Does the pressure drop immediately?
Yes
CARRY OUT the evaporative emission system 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 E4.
E4 TEST FOR EVAP CANISTER TUBE OR
FUEL VAPOR VENT VALVE ASSEMBLY
BLOCKAGE
 Disconnect the fuel vapor vent valve
assembly from the EVAP canister tube.

Connect the EVAP System Leak Tester to
the fuel filler pipe.
 Pressurize the EVAP system to 3.48 kPa
(14 inches H
2
O).
 Does the pressure drop immediately?
Yes
INSTALL a new EVAP canister tube and/or fuel vapor tube(s) between the fuel tank and the EVAP canister
and bracket assembly. CARRY OUT the evaporative emission system 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 fuel vapor vent valve(s) or assembly. REFER toFuel Vapor Tube Assembly in this section.
CARRY OUT the evaporative emission system 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 Powertrain Control/Emissions Diagnosis (PC/ED) manualEvaporative Emission Repair
Verification Drive Cycle in this section.
Page
8
of
8
2004 Freestar/Monterey Workshop Manual
10/9/2010
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS4W/~MUS~LEN/20/
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