Montero LS 4WD V6-2972cc 3.0L SOHC 12 Valve (1994)
Fuel Tank Pressure Release Valve: Testing and Inspection
FUEL TANK PRESSURE RELIEF VALVE
Attach a clean rubber hose, and check the operation of the fuel tank pressure relief valve.
Inspection Procedure:
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Blow lightly from the inlet side (fuel tank side). Air should pass through after a slight resistance is felt.
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Blow lightly from the outlet side (evaporative emission canister side). Air should pass through.