Return fuel line
 

I have a 2003 blazer 4 door. How hard/time consuming is it to change the return fuel line?

If you mean the fuel line that goes to injector I spend 3 days to attached it. It will hurt your back as you try to attach it in it place:icon_no:

Someone else shared this recently. I saved the link for future reference. It is for a flexible fuel-line kit that might make the job easier being flexible. You might check it out.

https://www.inlinetube.com/products/nfr0005