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Home >> Oldsmobile >> 1990 >> Custom Cruiser >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Fuel Evaporation Control >> Fuel Tank Pressure Control Valve

Fuel Tank Pressure Control Valve

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Apply approximately 15 in. Hg to tank pressure control valve. The diaphragm should hold vacuum for at least 20 seconds. If not, replace tank pressure control valve.