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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L V8 - VIN [H] >> Removal & Installation >> Fuel Pressure Release

Fuel Pressure Release

Disconnect battery terminals. Loosen fuel tank cap to relieve tank pressure. Internal constant bleed feature in throttle body injection unit relieves fuel system pressure when ignition switch is turned off. No further pressure relief is required.