Rusted out & Leaking Brake lines - Brake line Diagram

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Bxcliff

Member
Joined
Jan 7, 2018
Posts
63
Reaction score
15
Location
New York
My front brake lines started to leak fluid on my 2003 GMC Yukon Denali and i'm fixing to replace the leaking ones for now and replace all the other rusted out lines after winter ( I live in Upstate NY)

I tried searching for a diagram for the brake lines from the abs and the rear proportioning valve so i know which lines to replace for now but couldn't find anything online, don't want to cut out the wrong ones.

Also, any tips i should know going into this job? Any help is appreciated, trying to get my truck up and running to commute to and from school when it starts to snow.

Thanks
 
OP
OP
Bxcliff

Bxcliff

Member
Joined
Jan 7, 2018
Posts
63
Reaction score
15
Location
New York
I've seen that picture, but the one on my truck has 4 lines on top and 2 lines under it, not too sure if it's the same, what do you think?

And the whole kit isn't that much expensive so I'll order it as soon as I can thanks man

Sent from my SAMSUNG-SM-J727AZ using Tapatalk
 

Z28TWITCH

Member
Joined
Sep 18, 2013
Posts
83
Reaction score
27
4 on top? I have never seen one with 4 on top. Always just 3 up top and 2 on the bottom. Got a pic?
 
OP
OP
Bxcliff

Bxcliff

Member
Joined
Jan 7, 2018
Posts
63
Reaction score
15
Location
New York
4 on top? I have never seen one with 4 on top. Always just 3 up top and 2 on the bottom. Got a pic?
Yeah I can take a pic later after school this morning

Sent from my SAMSUNG-SM-J727AZ using Tapatalk
 

HiHoeSilver

Away!
Joined
Feb 28, 2017
Posts
10,919
Reaction score
14,571
Location
Chicago
I think that's because of RPO JL4. "Active brakes" enhanced stability system. 6 lines instead of 5.
 

OneofFew

Full Access Member
Joined
Jun 25, 2018
Posts
240
Reaction score
79
Location
Talullah Falls, Ga
Screw the kit. just get a roll of easybent line and dont even bother trying to run them like oem.
search this forum for some write ups.
 
OP
OP
Bxcliff

Bxcliff

Member
Joined
Jan 7, 2018
Posts
63
Reaction score
15
Location
New York
I think that's because of RPO JL4. "Active brakes" enhanced stability system. 6 lines instead of 5.
So if my front driver side brake line is leaking would I still go by that same diagram with 5 lines?

Like I said I just want to fix the leak for now and replace the others after winter

Sent from my SAMSUNG-SM-J727AZ using Tapatalk
 

Forum statistics

Threads
128,785
Posts
1,805,352
Members
91,763
Latest member
fast-cheap-right
Top