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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1644 (Engine Control System & Fuel System - 4.8L, 5.3L, 6.0L, 6.2L - Description And Operation) >> Description and Operation >> Evaporative Emission Control System Description >> EVAP System Components >> Fuel Fill Cap

Fuel Fill Cap

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The fuel fill cap is equipped with a seal and a vacuum relief valve.