Ford 2003 Mustang Workshop Manual page 2152

Excessive fuel odor
Unable to refuel vehicle
Pinpoint Tests
NOTE: Reinstall or install new evaporative emission hose clamps removed or damaged during testing
procedures.
PINPOINT TEST A: DTC P0442 SMALL LEAK IN EVAP SYSTEM
Test Step
NOTE: Condition P0442 DTC set: less than 0.625 kPa (2.5 inches H
seconds at 75% fuel fill. Vapor generation limit: more than 0.625 kPa (2.5 inches H
seconds.
A1 VISUALLY INSPECT THE
COMPONENTS FOR SMALL LEAKS
Check for the presence of a fuel filler
cap. Do not tighten or check for correct
installation at this time.
Verify the canister vent solenoid is
correctly seated on the EVAP canister.
Check for cut or loose connections to
fuel vapor hoses, tubes and
connections in the following locations:
EVAP canister to EVAP canister
purge valve
EVAP canister to fuel vapor vent
valve assembly
fuel vapor control valve tube
assembly to fuel tank
Check the fuel filler pipe for damage.
Is a concern with a hose, tube,
connection or valve visually
evident?
A2 CHECK AT THE EVAP TEST PORT
FOR SMALL SYSTEM LEAKS
Disconnect and plug the evaporative
emission return tube at the intake
tube assembly.
EVAP canister tube.
EVAP canister purge
outlet tube.
Canister vent solenoid.
Evaporative emissions
canister.
Fuel vapor control valve
tube assembly.
Evaporative emissions
test port.
EVAP canister purge
outlet tube.
Fuel filler pipe.
Canister vent solenoid.
Fuel vapor control valve
tube assembly.
Result / Action to Take
Yes
REPAIR or INSTALL new components as
necessary.GO to
No
GO to A2 .
Yes
GO to A3 .
Go To Pinpoint
Test E .
Go To Pinpoint
Test D .
O) bleed-up over 15
2
O) over 120
2
A2 .