Honda 2008 Accord Owner's Manual page 265

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Service Station Procedures
3. Remove the fuel fill cap slowly.
You may hear a hissing sound as
pressure inside the tank escapes.
The fuel fill cap is attached to the
fuel filler with a tether. Place the
cap in the holder on the fuel fill
door.
4.
Stop filling the tank after the fuel
nozzle automatically clicks off. Do
not try to ''top off'' the tank. Leave
some room for the fuel to expand
with temperature changes.
If the fuel nozzle keeps clicking off
even though the tank is not full,
there may be a problem with your
vehicle's fuel vapor recovery
system. The system helps keep
fuel vapor from going into the
atmosphere. Try filling at another
pump. If this does not fix the
problem, consult your dealer.
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5. Screw the fuel fill cap back on
until it clicks at least once. If you
do not properly tighten the cap,
you will see a ''CHECK FUEL
CAP'' message on the information
display. If the system still detects
an evaporative system leak after
retightening the cap, the
malfunction indicator lamp may
come on (see page
6. Push the fuel fill door closed until
it latches.
2008 Accord Sedan
Check Fuel Cap Message
370 ).
Your vehicle's onboard diagnostic
system will detect a loose or missing
fuel fill cap as an evaporative system
leak. The first time a leak is detected
a ''CHECK FUEL CAP'' message
appears on the information display.