So among all the other stuff I got going on with my truck I had to replace all braking components. Calipers,pads,rotors,hoses and lines in the front. So my problem after installing everything is when i went to bleed the brakes it's leaking at where the lines meet at the hose connection on the drivers side. What could be causing this if everything is brand new?

 

A few things could cause it - are the new hard lines stainless steel? If so, I found that due to the hardness of stainless steel, I had to tighten the brake line fittings much more than I expected to to get them to seal up and not leak. Did you make the hard lines up yourself? If so, did you use a good double flaring tool to make the flared ends of the tubing?

 

I got the lines that are already made up as i didn't want to mess with flaring and buying the tool also. So what ever the part store gave me is what i got. I'll go check for sure tho. And if I tighten them anymore it feels like their just gonna twist and snap the line off.

 

remove and inspect the flare, the nut, threads, alignment, etc. retighten/loosen a few times to see if it will seat properly.

if everything is aligned, put a little more torque into it.

 

I'm pretty sure their stainless steel and they have a greenish gray coating on them called body armor.

 

I bought a set of custom pre-bent stainless brake hard lines (www.classictube.com) a while ago and it took me several tightening tries to get them to stop leaking. If felt like I was over-tightening them, but, after several attempts at re-tightening, I got them to stop leaking.