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Home >> GMC >> 1992 >> Yukon V8-350 5.7L >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Fillpipe Restrictor >> Testing and Inspection

Fillpipe Restrictor: Testing and Inspection

Fuel Door And Restrictor (Typical):




Fuel Filler Neck:






The fillpipe restrictor should prevent insertion of special dowel with a diameter same as that of leaded fuel pump nozzles (0.950").