4-7
E
FUEL
Rollover valve check
1. Check:
• Rollover valve
Does not function properly → Replace
the rollover valve.
Checking steps:
1. Blow into the end a of the rollover valve,
and make sure that airflow from the end b
is unrestricted.
2. Blow into the end b of the rollover valve,
and make sure that air does not come out
from the end a.
a
b
Check valve check
1. Check:
• Check valve
Does not function properly → Replace
the check valve.
Checking steps:
1. Blow into the end a of the check valve,
and make sure that airflow from the end b
is restricted.
2. Blow into the end b of the check valve,
and make sure that airflow from the end a
is unrestricted.
a
b
Fuel tank, fuel pump module, and fuel hose
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