As stated in a previous thread, I lost my breaks the other day. I have a leak on the left rear side of the vehicle coming from one of the lines. I am ordering from Advance or Autozone because I have coupons and want to make sure I am ordering the right part. I was going to replace both rear brake lines as a preventive measure. Here is a picture. Is the rusty connection where they leak from or is this residual fluid from a leak higher up the line and it just traveled down? <----(see second picture) Is it the soft lines that I need? And if so, do I order 2 of them? Thanks in advance.






By rgr4475 at 2012-07-29

 

Please tell me if you can't see the pictures

 

Can't see the pictures homie

 

By rgr4475 at 2012-07-29


By rgr4475 at 2012-07-29


By rgr4475 at 2012-07-29

 

I have no idea why it's not letting me post them

 

One more try

 

The pictures you show are actually the parking brake cables. As such they are mechanical and do not have any fluid in them. Autozone has the correct parts listed on their site so you should not have any problem getting the rights parts. I would change both sides. BTW there is only on flex brake line, the one that goes to the rear axle. Hope this helps.

3JeepGuy

 

keep searching for leak as stated above those are e brake cables no fluid is in them

 

The leak is coming from that black box looking thing on the left rear of the vehicle that a bunch of the lines are attached to. What is that?

 

Ok, I called my local dealer and explained the black box thing to him. He told me it was the Proportioning Valve. Does this sound right and is this something I can get aftermarket or only order from the dealer?

And how do you get that off? There are 2 bolts into the floor panel, 2 smaller bolts on the side of the unit, then 2 rubber bushing looking things on the other side.

 

The brake proportioning valve is not a "black box thingy" nor does it reside in the rear near the e-brake cable junction - it is located near the brake master.

Something in your rear brake plumbing has ruptured and it sprayed brake fluid onto your e-brake cable. You found the point where it dribbled down to (possibly) the lowest point on the e-brake cable jacket.

Check the rear hardline junction (near the e-brake cable junction) where it meets the first soft line (which runs to the front side of the rear axle). Also check the drivers side rear brake line where it enters the wheel cylinder (at the inboard side of the left rear backing plate). Then check every other hydraulic brake line and junction in the area of the e-brake cable junction. I have no compunction you'll find the junction with the malfunction... Ohhh, that was bad, I'm sorry for trying to rhyme....

 

Haha, rhyming is ok. I pumped the brakes and it is dripping right out of that black box thing. (You can catch a glipse of the box on the left side of pic #2) What is that or what is under there that would be leaking? Or are you telling me it's coming from somewhere else and only looks like it's leaking from there? Such a brake novice, sorry.

 

That BBT (Black Box Thing) is the charcoal canister. When you hit the brakes, brake fluid is probably squirting out of a pin hole in the brake line that runs next to the canister and is dripping off it.

 

It's okay to be a novice. You have to start somewhere. At least you're trying - and every "try" is another lesson learned.

I'm trying to visualize the "black box" you've described. It may be the purge canister housing - with a bunch of hard plastic lines entering/exiting. Those are all about fuel vapor recovery and recirculation.

After looking at your photos more closely, I think I see the leak-source. It appears to be where the hard and soft lines meet. You can see the bracket-mounted coupling near the e-brake cable with the extra thick jacket on it. If I'm right - and I hope I'm not - then you are about to take on a plumbing task that is a total PITA.

You'll need a second person to help you. Make sure there's enough brake fluid in your reservoir then climb under there (wear safety glasses and bring a light source - no open flames). Have your helper press on the brake pedal while you monitor/observe for the source of the brake fluid leak. If you determine that it's the hard line before the coupling then I'll suggest that it's not a task for a novice to tackle alone - get experienced help.

 

Haha...BBT

Yeah I'll have to get someone to pump the brakes while I watch. I have been doing it myself and maybe just caught the aftermath. Thank you.