chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Fuel Pressure Regulator|Description and Operation|Page 6486 > < Quick Connect Fitting(S) Service (Metal Collar)|Page 6482
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Fuel Pressure Regulator: Description and Operation

Fuel Pressure Regulator Assembly

The fuel pressure regulator is a vacuum-operated diaphragm relief valve with fuel pump pressure on one side, and with regulator spring pressure and
intake manifold vacuum on the other side. The fuel pressure regulator maintains a constant pressure differential across the injectors at all times. The
pressure regulator compensates for engine load by increasing the fuel pressure when the engine vacuum drops.

Fuel Pressure Regulator|Description and Operation|Page 6486 > < Quick Connect Fitting(S) Service (Metal Collar)|Page 6482