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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 973 (Engine Controls - 4.8L, 5.3L, & 6.0L (Introduction)) >> Description and Operation >> Fuel System Description (Cab Chassis) >> Fuel System Overview

Fuel System Overview

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The fuel tank stores the fuel supply. The electric fuel pump sends fuel through an in-line fuel filter to the fuel rail assembly. The fuel pump provides fuel at a higher rate of flow than is needed by the fuel injectors. The fuel pressure regulator keeps fuel available to the injectors at a regulated pressure. A separate pipe returns unused fuel to the fuel tank.

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