Montero Sport ES 4WD V6-3.0L SOHC (2002)
Rollover Valve: Testing and Inspection
FUEL CUT-OFF VALVE CHECK
1. Shake the fuel tank rollover valve assembly up and down to check if the float inside the fuel tank rollover valve assembly is not seized. If seized,
replace the fuel tank rollover valve assembly.
2. Obtain a container, which is full of water.
3. Invert the fuel tank rollover valve assembly, and submerge it slowly in the water while placing your fingers over the nozzle.
4. Check that no more air bubbles appears from the fuel tank rollover valve assembly, and withdraw it slowly.
5. Open the fuel tank rollover valve assembly nozzle. If no water flows out from the nozzle aperture, the valve is normal. If water flows out, the float
or spring inside the fuel tank rollover valve is defective. Replace the fuel tank rollover valve assembly.
