Operation CHARM: Car repair manuals for everyone.

EV 5 - Check Rollover/Vent Valve



^ Visually inspect the rollover/vent valve and its connections for pinching, blockage, looseness, or other damage and/or leakage.

^ Remove the rollover/vent valve.





^ Blow air through port A.

^ Verify that a considerable resistance is felt and a portion of air flows toward the canister.

^ Blow air through port B.

^ Verify that air is smoothly flowing toward, the fuel tank.

^ Is the valve free of leakage, and does it function properly?

YES -- RETURN to Diagnostic Routines. Diagnostic Routines Index

NO -- REPLACE/SERVICE the rollover/vent valve.