Question about GMC Jimmy

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I was just wanting to know the routing of the brake line from MC to rear of vehicle. Ive been told that I have to just leave the old line in and run a new one. I know the line is above the frame rail. Was just wondering if what I was told is correct.

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That is correct and sensible. Replace your line one at a time and follow the old line with a new one.

Posted on May 24, 2011

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That is one way to do it i personally try to remove as much of the old one as possible since i work at a dealership and i want customers to be happy, but if i was doing it on my own vehicle and there was a spot i could not get it out from i would just leave it.... it wont hurt anything, as far as the routing of it i would just follow the old line and use the old clips as best as possible and zip tie it where the old clips wont work.

Posted on May 24, 2011

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No it was not

You can leave the old rusted line if you want,
but why.

You don't need to be told anything

Your either knowledgeable enough
to figure things out or not

You have to have the tools to cut,bend& flair
brake tubing.

You can run & secure it as you see fit.
Try to follow the OE the best you can.

There are no diagrams or tubing you buy and
install. That is a fabrication job you have to learn

Posted on May 24, 2011

  • krs13f May 24, 2011

    Thanks Im definetly knowlegeable enough to do it was just wanting to get some input before I tackle my first ever brake line job. I just have heard that to get the old line out of this vehicle i would have to lift the body off the frame. Thanks for your input though

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1 Answer

Bleeding the brakes


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The size of the pipe is intuitive by simple comparison or measuring with a caliper but there is several different threads, lengths, diameters of pipe nuts in common use and it is important to get these right first time.

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