Need fuel line diagram for 2007 Chevy Silverado
I have a 2007 Chevrolet Silverado 1500 classic with the 4.3 6 cylinder engine. I recently purchased this truck for work. It had check engine light on with codes of misfire in cylinder #5. I changed spark plugs and wires on it which kept giving me misfire code. I bought a new spider injector but when I take the upper intake manifold off, I realized that there was the in line for fuel but the return line was cut off and sealed. So I went from the tank and followed the fuel lines. One goes from the tank to the manifold and the other from the tank to the evap purge solenoid on the side of the intake manifold. So I would really appreciate if anyone has the fuel line diagram for this type of truck. I need to know where the return line goes to. Whoever worked on this truck before did half ass work. I don't even know how it was running with no return line. Any help with this issue would be appreciated. Thank you in advance.