Fuel lines located

[scubieman]

I show under truck 3 fuel lines. Which is what and why?I assume two returns and 1 feed? Also doesn't the CP3, fuel rail and injectors return fuel to tank?

[AH64ID]

They say a photo is worth 1000 words... I only recall 2 on mine, the 3rd could be a brake line??The CP3 and injector return lines merge into one at the fuel filter housing.

[scubieman]

I see two alumnium gray lines and one black. I assumr your right and black one is brake line.Is there a drawing diagram for how cooland flows? Like cut out or diagram? Same with return fuel line, cut oit or drawing?

[AH64ID]

The fuel supply line on my buddies '10 was black. Really a photo would be huge.

[scubieman]

Here you go

[AH64ID]

It must be a 4th gen thing with the black fuel lines.

Yours looks just like mine. Top is supply, middle is return, bottom (black) is brake.

[scubieman]

Do you know how the coolant flows through a 6.7?

[AH64ID]

Since it's based on the same block as the 5.9 I would assume (here we go) that it's just like this...

What are you trying to do?