MPV ES V6-2.5L DOHC (2001)
Fuel Tank One Way Valve: Testing and Inspection
NONRETURN VALVE INSPECTION
1. Remove the nonreturn valve. (See FUEL TANK REMOVAL/INSTALLATION.)
2. Verify that the nonreturn valve opens up to 90 ° when it is pushed from the fuel-filler pipe side, and it returns to the normal position by the spring
force.
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If the nonreturn valve does not open up to 90 ° or does not return to the normal position, replace the nonreturn valve.