GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Corvette 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Fuel Hose/Pipes Routing Diagram
Figure 1:
Object Number: 561135 Size: LF
(1)Fuel Feed Pipe
(2)Auxiliary Fuel Feed Rear Pipe (left tank to jet pump)
(3)Auxiliary Fuel Return Rear Pipe (jet pump to left tank)
(4)Fuel Feed Pipe Check Valve
(5)Fuel Feed Pipe Tee with Orifice
(6)Fuel Feed Rear Pipe (to fuel filter/fuel pressure regulator and siphon jet pump)
(7)Fuel Return Rear Pipe
(8)Auxiliary Fuel Return Rear Pipe (jet pump to left tank)
(9)Fuel Filter/Fuel Pressure Regulator
Figure 2:

w FFS
Object Number: 877203 Size: MF
(1)Fuel Fill Hose
(2)Left Fuel Tank Grade Vent Valve
(3)Fuel Feed Pipe to Engine
(4)5/16 Inch Auxiliary Fuel Feed Pipe
(5)3/8 Inch Auxiliary Fuel Return Pipe
(6)Right Fuel Tank Grade Vent Valve
(7)Fill Limiter Vent Valve (FLVV)
(8)Secondary Fuel Pressure Regulator
(9)Siphon Jet Pump
(10)Convoluted Crossover Hose
(11)Anti-siphon Hole
(12)Fuel Sender Reservoir
(13)Turbine Fuel Pump
(14)Venturi Pump
(15)Primary Fuel Pressure Regulator
(16)Reverse Flow Check Valve
(17)Fuel Filter