gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Modular Fuel Sender Assembly <--> [Fuel Tank Unit] > < Fuel Supply Line|Description and Operation|Page 4976
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Fuel Filler Hose: Description and Operation

To help prevent refueling with leaded fuel, the fuel filler neck has a built-in restrictor and deflector. The opening in the restrictor will accept only the
smaller unleaded gasoline fuel nozzle which must be fully inserted to bypass the deflector. Attempted refueling with a leaded gas nozzle, or failure to
fully insert the unleaded gas nozzle, will result in gasoline splashing back out of the filler neck. 

Modular Fuel Sender Assembly <--> [Fuel Tank Unit] > < Fuel Supply Line|Description and Operation|Page 4976