Fuel Hose replace

[btfarm]

I'm pretty sure I need to replace the fuel hoses under the hood finally at my next maint cycle. Size (I figure they are 3/8" ID)? And how many feet do I need? Is any Bio diesel compatible brand better than any other?

Thanks

 

[THEFERMANATOR]

Not sure on LBZ, but my LB7 is 1/2" and 5/16" ID lines. I like diesel rated nylon cored hose myself. It doesn't collapse as easily, but unfortunately it doesn't bend well.

 

[C20ELEPHANT]

I noticed a crack on the end of mine at the primer pump, may do it after summer along with the turbo and heater coolant lines.... Link to a good picture and part numbers


http://parts.nalleygmc.com/showAssembly.aspx?ukey_product=3207322&ukey_assembly=374756



http://parts.nalleygmc.com/showAssembly.aspx?ukey_assembly=374687

And the EGR coolant hoses.

http://parts.nalleygmc.com/showAssembly.aspx?ukey_assembly=374629

 

[Burning oil]

This is as high quality hose as you'll find. 3/8" only at this time. http://leroydiesel.com/products/diesel-fuel-rated-38-hose/

 

[btfarm]

I replaced the 2 hoses to and from the filter and installed a new filter today. I used 1/2 id bio diesel grade hose from NAPA. Hard to believe that little bit of hose and a new filter could make a huge difference but I seemto have gained a significant amount of giddy up.
On edit : I hammered it hard up through the gears this morning in T/H mode and before that was a sure way to throw a low fuel rail code. But not today...

 

[btfarm]

Well so much for that. Threw a rail pressure code when I hammered it on I80 at 75 or so and at a tick under 3000 RPMs. Guess I'll have to get to the other hose to the pump.

 

[RI Chevy Silveradoman]

Does the hose from NAPA have a thin layer of different rubber as an inner-liner?
Is 1/2 inch the OEM fuel hose size?
What was the length for that replacement?

 

[GM Guy]

@btfarm

Did you have a list of supplies and part numbers needed so a guy knew what to buy to do the job?

I really need to add a lift pump, but new hoses would definitely be good until then.

Also, what does one do on the crimped connections? cut the crimp and use hose clamps going back together?

 

[RI Chevy Silveradoman]

You need the Lisle tool to disconnect the 2 hoses.
Nor surw on the spelling there, but it slides into the quick disconnect hoses so you can separate the hoses.