Rear brake lines

[Escape.idiocracy]

Or abs. Either way, a computer is required to do a proper bleed, according to a shop I do trust.

I’m not saying you’re wrong. But I don’t think that all of the information is being released. The computer is needed to actuate the ABS system….. which in all fairness is true….

a way to avoid this is to ensure you don’t let air into the ABS system…. So- ensure the brake fluid res. Never runs empty…. Syringe the tank, refill with new fluid and bleed.

this is the internet so ??‍? everyone can do things however they would like… Just saying the criticality of operating the ABS can be avoided pretty easily.

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[WILDHOBO]

I too am a grease monkey.. Just did my lift. I have rebuilt motorcycles , V8's transmissions etc... and have bled plenty of brakes in my life. I do all my own stuff and to think that something that simply would require a shop computer literally blows my mind?

Agreed. But oh well. It’ll be interesting to see how much air they get out. I’m going to hang out and watch.

 

[WILDHOBO]

I’m not saying you’re wrong. But I don’t think the all of the information is being released. The computer is needed to actuate the ABS system….. which in all fairness is true….

a way to avoid this is to ensure you don’t let air into the ABS system…. So- ensure the brake fluid res. Never runs empty…. Syringe the tank, refill with new fluid and bleed.

this is the internet so ??‍? everyone can do things however they would like… Just saying the criticality of operating the ABS can be avoided pretty easily.

Good tip. I like it. I’m still good with letting someone do this, but a dealer will never touch it. I think it’s like home improvement. I’ll do everything except tile. I know I can do it, but have no interest in doing so.

 

[JTGuy]

I'll ask a few 4x4 shops that change brake lines how they bleed the air out. I hope it doesn't take a computer. A shop can screw things up a well as I can. I have done many brakes and never had a computer to do it. Terraflex sells big brake stuff and their tech line should know.
I went to Auto Zone for some Dot3 and they had regular and synthetic. What do we have in our Jeeps and can they be mixed?

 

[Stan H]

I'll ask a few 4x4 shops that change brake lines how they bleed the air out. I hope it doesn't take a computer. A shop can screw things up a well as I can. I have done many brakes and never had a computer to do it. Terraflex sells big brake stuff and their tech line should know.
I went to Auto Zone for some Dot3 and they had regular and synthetic. What do we have in our Jeeps and can they be mixed?

Call em , after what I was told I have my doubts you get a great answer.

 

[JTGuy]

I was told that the bleeding is just like the old days unless you are replacing the ABS. I am just going to get the Mopar brake fluid. No one seems to know if it's synthetic or not.

 

[WILDHOBO]

I was told that the bleeding is just like the old days unless you are replacing the ABS. I am just going to get the Mopar brake fluid. No one seems to know if it's synthetic or not.

I hate that there’s so much misinformation. Oh well. I’ll know for sure on Friday. I’ll update this after that. I’ll definitely be watching to see what they do.

 

[JTDay]

On my 5G Ranger, there was a procedure to bleed the ABS pump that was entirely done with a computer. Sounds like the same thing here. Enough people have replaced those lines that we'd know about any issues by now.

 

[WanderingTrail]

Unless you get air in the system via the brake reservoir, bleeding is just like the old days farthest to closest. Bleed the rear passenger first, then rear driver, then front passenger, then front driver. I have replaced a line, hooked up the bleed bottle, bleed it, then moved on to the next line and repeated. Takes a little longer, but it minimizes the air in the system. Still takes two people.

Ron

 

[JTGuy]

This is correct AFAIK. This is what I am hearing over any other procedure.

 

[bleda2002]

Did mine old school way, was simple and effective. The gladiator brakes just kept on pumping fluid when the pedal was depressed so it really made it super easy other than making sure to watch the reservoir levels since it spit it out so fast.

 

[JTGuy]

Seems like we are all overthinking stuff a little much with the new vehicles.

 

[MaxStrategery]

I too am a grease monkey.. Just did my lift. I have rebuilt motorcycles , V8's transmissions etc... and have bled plenty of brakes in my life. I do all my own stuff and to think that something that simply would require a shop computer literally blows my mind?

I am certain I saw a video this week of a big brake upgrade on the gladiator, it was Teraflex kit, they bled the brakes by hand in the instructional video, no computer hookups or anything other than a bleed kit and a second in the truck pumping the brake pedal.

 

[Stan H]

 

[IzzyO]

Just a few points to consider:

Maybe you can get away without doing an ABS power brake bleed, you can only try and find out and let us know if you have any issues since it seems there's a few different opinions on this matter.

With this being said I do know for a fact after an 'ABS' activated incident that you can sometimes get the dreaded mushy brake pedal which does require an ABS powered brake bleed to fix. This past winter my ABS engaged when I hit some ice and started to spin out. Since then my brake pedal has been mushy although the brakes still work, but the pedal sinks more than I'm comfortable with.

There are several threads that address this on both the JT & JL forums (search something along the lines of mushy brake pedal). There is some conjecture that this mushy brake pedal is caused by poor design of the oem brake lines (something about them expanding too much if I recall) and Grimm was one of the brake lines suggested to install to help avoid a repeat of this again in the future. In order to perform an ABS brake bleed you need to activate the ABS pump while bleeding the brakes which requires a device to activate the system, but you can certainly do this yourself if you have the correct tools. The dealership is a waste of time and most likely won't perform this for you.

I haven't dug far enough into this yet to figure out if my Tazer mini is capable of activating the ABS for this or if I need to just buy the device.

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