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Old 09-10-2015, 08:25 PM   #1
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Brake Fluid Leak

Only on one side (rear passenger side).
Leaks brake fluid, very slow leak. Noticed spots on my wheels where its dripped down.

If you look in pics you can see the wet spots.
idk if its coming from that bolt on the caliper or the hose that leads to it.

Look at pics and tell me what you think.

Also my brake fluid tank is still full, like an inch under the max fill line
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Old 09-10-2015, 09:25 PM   #2
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Damn bro your cars been leaking a lot of fluids these days 😳


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Old 09-10-2015, 09:45 PM   #3
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Originally Posted by Harm_3.7 View Post
Damn bro your cars been leaking a lot of fluids these days 😳


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Dude tell me about it, fuggin sucks.

Got my water pump fixed.
About to get this stupid rear end right, and replace the bearings, seals, and whatnot.

And now this... Going to ask about it on Monday when I go get rear end checked out. (not a dealership)
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Old 09-10-2015, 11:22 PM   #4
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I had a similar leak on the rear driver side, mechanic found it when rotating my tires. He said it was a leak at the "banjo" coupling and he said I should see a dealer. I asked him to check the nut on the coupling. He found it was loose, tightened it and it hasn't leaked since. That was 18 months ago. Tighten the nut...
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Old 09-10-2015, 11:37 PM   #5
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Brake Fluid Leak

Quote:
Originally Posted by LavaRedSixxer View Post
Dude tell me about it, fuggin sucks.



Got my water pump fixed.

About to get this stupid rear end right, and replace the bearings, seals, and whatnot.



And now this... Going to ask about it on Monday when I go get rear end checked out. (not a dealership)

At least you caught it before you ran out of brake fluid 🙌. These little things man are fixable and they happen to all of us. It's the risk we take when we mod our cars


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Old 09-11-2015, 06:40 AM   #6
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Quote:
Originally Posted by iguanaman3 View Post
I had a similar leak on the rear driver side, mechanic found it when rotating my tires. He said it was a leak at the "banjo" coupling and he said I should see a dealer. I asked him to check the nut on the coupling. He found it was loose, tightened it and it hasn't leaked since. That was 18 months ago. Tighten the nut...
Alright I'll try that. Looks like it's coming from that bolt. I had the brakes checked recently so they may have not tightened it correctly
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Old 09-11-2015, 07:03 AM   #7
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Whomever "checked" the brakes recently would not have a need to loosen this bolt to inspect the brakes. Hopefully it snugs up a bit to stop the leak.
At the very least, I'd consider having the brakes bled, as a leak will also draw air and moisture into the lines; moisture will destroy brake components, and contaminate brake fluid. The brake fluid should be flushed every 3 years anyhow.
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Old 09-11-2015, 07:28 AM   #8
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There's really only 2 spots brake fluid could be leaking, one being the feed line with that banjo bolt, and the other being the bleeder nipple on top of the caliper. The bleeder nipple just needs to be snugged with a box wrench, but that banjo bolt on the bottom has a copper crush washer to serve as a gasket, and those need to be tightened pretty good. Not like He-man good, but pretty damn snug.

Should be an easy fix, but wipe everything down real good and check in a few days, and if its still doing it you may be able to pinpoint where.
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Old 09-11-2015, 07:33 AM   #9
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Keep in mind, brake fluid eats paint, so get it off your wheel asap!

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Old 09-11-2015, 08:26 AM   #10
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I was able to tighten that bolt without applying too much force.

Idk it could be that little rubber hose connected to it.

Anyway to check the leak??
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Old 09-11-2015, 09:07 AM   #11
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Quote:
Originally Posted by LavaRedSixxer View Post
I was able to tighten that bolt without applying too much force.

Idk it could be that little rubber hose connected to it.

Anyway to check the leak??
Like someone mentioned, wipe it down as completely as possible.
Then have someone apply brakes (with car running) while viewing closely for seepage.
EDIT: But if you were able to tighten that bolt without applying too much force, there's a good chance what you see at the hose came from bolt connection.
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Old 09-11-2015, 02:06 PM   #12
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Okay I started it up and pumped the brakes and held it down for a while, didn't see anymore fluid come out.

The banjo bolt that had all the oil on it before it still dry. In the pic it looks like it was dripping off the bolt
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Old 09-11-2015, 02:51 PM   #13
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Quote:
Originally Posted by LavaRedSixxer View Post
Okay I started it up and pumped the brakes and held it down for a while, didn't see anymore fluid come out.

The banjo bolt that had all the oil on it before it still dry. In the pic it looks like it was dripping off the bolt
Well that's a good sign. Now just keep your eye on it.
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Old 09-11-2015, 02:58 PM   #14
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Might upgrade soon and get this.

Russell Stainless Steel Braided Mustang Brake Line Kit - Front & Rear - Free Shipping

After I get my rear end noise fixed lol
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Old 09-11-2015, 11:10 PM   #15
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Drove her to work (20 miles), checked the area around banjo bolt and it was bone dry.

Drove home, checked again, still bone dry. No spots on wheels anymore either.

Thank god it was something simple
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