FUEL LINE MIXUP

[zataca]

I just replaced the fuel pump and the two hard fuel lines going to the fuel bowl. Now I don't know what goes were. Soooooo if you could tell me were the line from the pump goes that would be helpful. Is the fuel line that goes into the top of the fuel bowl the intake or return. Thank you for any help

[bigcountrysg]

I believe they are diferent sizes and will only go on one way. I believe the feed line is the bigger one and the return line is the smaller one.

[zataca]

THE LINE THAT COMES FROM THE FUEL PUMP AND THE RETURN LINE TO THE TANK ARE THE SAME SIZE WHEN THEY CONNECT TO THE SOFT LINE AT THE WHEEL WELL. ABOUT 18" FROM THE FUEL PUMP.

[bigcountrysg]

What year truck is it.

[strokin_early_99]

The line at the frame at the wheel well area is 3/8" supply and 5/16" return. They are not the same size. I just had them off and hooked up the supply hose to the return hard line on accident. Look again or try again.

[zataca]

2000 f-350 crewcab 4x4 7.3 powerstroke

[zataca]

Ok I just when out into the cold and checked the lines again. The hard lines on the fuel bowl side are 5/16 3/8. But on the fuel pump side they are both 5/16. So is the 3/8 line that goes into the bottom of the fuel bowl the intake or return.

[strokin_early_99]

Originally Posted by zataca

So is the 3/8 line that goes into the bottom of the fuel bowl the intake or return.

Intake is 3/8"