Fuel line routing - MustangForums.com


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Old 02-12-2018, 03:04 PM   #1
Mustang_Don
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Default Fuel line routing

I suspect this question has been answered somewhere on the forum, but I haven't found anything relevant.

I don't have any immediate need to know, but just out of curiosity, I'm wondering where the pressurized gasoline enters the fuel rails, and where the two fuel rails are connected together. I've looked under the hood a few times trying to locate them just in case I ever do have a need to know, but haven't had any luck in my search so far. Incidentally, I haven't searched with the throttle body input air snout or any other under-hood plumbing removed.

Thanks for your input.

Don
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Old 02-12-2018, 06:15 PM   #2
Urambo Tauro
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Look for the injectors, mounted vertically between the intake manifold and valve covers. On top of each row of four injectors is the fuel rail, which should have a chrome finish. Both rails are connected at the front and rear by semi-flexible grey-ish colored tubing.

Should you ever need to check fuel pressure, look for a black plastic cap on top of one of the fuel rails. You'll find a schrader valve underneath that cap.
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Old 02-12-2018, 08:56 PM   #3
WhiteFoxGT
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the fuel supply line comes up from the passenger firewall near the antenna and goes in to the fuel rail with a quick connect style coupling
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Old 02-13-2018, 03:23 PM   #4
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Thanks for the replies. I found the fuel line based on your response, ojnce I knew where to look for it. I knew where the injectors were already. I had removed all eight ignition coils within two weeks after purchasing the car (used) to replace the spark plugs, and learned at that time where the fuel rails and injectors were, just didn't pay any attention to where the fuel came from. I noticed something yesterday while poking around under the hood that I had never paid attention to before - the injectors are positioned forward of the coils (towards the front of the car) on the passenger side, and behind the coils on the drivers side. I also discovered the fuel pressure sensor on the LH fuel rail. It's obviously a sensor and not a FPR, since it's located in the middle of one of the fuel rails. Apparently this engine uses the fuel pump to regulate the fuel pressure based on input from the ECU. By the way, my model GT appears to only have an interconnecting line between fuel rails at the rear of the engine, I couldn't find anything like that at the front.

Thanks again for the input, now I know.
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Old 02-13-2018, 06:57 PM   #5
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Ok, you must have one of the later ones, then. That explains the single crossover.
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