Thread: rear brake line question

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  1. #1 rear brake line question 
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    ok first off im a mechanic so i know the saftey concerns and dangers of what im asking. i have a 01 grand prix the rear two brake lines have rusted out due from the car coming from new york and i live in texas. i dont have the money to replace the rear brake lines as im making payments on this car for the next 4 weeks. when its paid off im buying a kit on ebay to replace all the brake lines on this car i just need it like this for 2 months ill drive it 10 miles one way to work and home no faster than 45 miles a hour. all i wanna do to make the car drivable is to remove the rear lines from the abs module and insert a plug in the ports so the system will hold fluid and restore front brakes so i can drive it. again only for 2 months like this no more than 10 miles one way no faster than 45 miles a hour. all i wanna know is if i plug the rear line ports on the abs module will it be leak free and restore front brake function to make the car drivable? again i already know the dangers of this so please save your negative post for someone else
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  3. #2 Re: rear brake line question 
    Killa Bee Scottydoggs's Avatar
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    id just replace whats busted with some new line and compression fittings.

    if the line blew out in the rear sub frame. mine did. so i cut the line in the d/s rear wheel well, and cut the line on the pass side 6 inches form the union to the rubber line to caliper, then ran a new nicop line across the back of the gas tank and to each cut off end. been that way for like 5 years now easy.

    ive since replaced all the lines to the back of the car, fuel lines too. but left that rigged line in place.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #3 Re: rear brake line question 
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    How exactly did ya run the line?
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  5. #4 Re: rear brake line question 
    Killa Bee Scottydoggs's Avatar
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    its right behind the back of the gas tank, not even tied in to nothing, just hangs out back there like it was meant to be. i have pics but they are on photobucket and that site is being horrid right now.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #5 Re: rear brake line question 
    Killa Bee Scottydoggs's Avatar
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    got to em.....

    pass side off the union cut wrapped around the back of the tank https://oi1097.photobucket.com/album...pse6381c02.jpg

    and driver side in a open area so you can work on it easy. https://oi1097.photobucket.com/album...ps1eaa1b09.jpg

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  7. #6 Re: rear brake line question 
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    Ya wouldn't by chance happen to remember the brake line size Would ya?
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  8. #7 Re: rear brake line question 
    Donating Users bandook's Avatar
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    3/16
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  9. #8 Re: rear brake line question 
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    If I was to use the union method like he did in the pics do I need to flare the ends?
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  10. #9 Re: rear brake line question 
    Killa Bee Scottydoggs's Avatar
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    no flaring for compression fittings, just need a clean cut. if the old line is rusty where you want to cut it, sand it with 100 grit paper first, then cut it. easier to sand as a solid line and no crap can get inside the line.

    you can use a hack saw or i like using a small ass pipe cutter. makes a real clean cut.

    and for some reason, im thinking the line is 5/16 ths. i could be wrong tho. last thing i patched up was fuel rail and might be mixing em up.

    parts stores got line for sale in lengths up to 5 foot long, come with flared ends and union nuts already. you cut them off. get the 5 foot long nicopp line and you will have a foot or so left over. line costs about 20, compression fittings like 3-4 bucks for a pack of two fittings.

    buying this stuff at my auto zone, i tell them what i need, they say what car? i say its at the end of the isle right here, i know what i need lol then they walk me back there and i grab what i need.

    then if you dont have a helper or a power bleeder, you can make a one man bleeder from some clear thin tubing that fits the bleeder on the caliper snug, then put the other side of the hose in a bottle put a inch or so of brake fluid in the bottle make sure the hose is under the fluid line, fill the master up, then slowly push the brake pedal down let it back up slowly, you can also just do short pumps if you like. till you see solid fluid in the tubing to the bottle, theres how to's for the one man bleeder on youtube. love that little trick. as i work alone alot. keep a eye on the master, you dont want it to run dry.

    now if it already ran dry, you need to bleed the master before bleeding anything else. to bleed the master on the car, i crack the two line nuts free and snug em back up. have a helper pump the brakes and hold them like you would a caliper, then you crack the line nut open, you'll hear air spit out, repeat till its just fluid coming out. do both lines. wrap a rag around the wrench and nut to keep the mess at bay.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  11. #10 Re: rear brake line question 
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    I went ahead and ordered the pre bent brake line kit off ebay but could I just plug the rear ports on the abs so I can drive it till the kit comes in mail?
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  12. #11 Re: rear brake line question 
    Donating Users bandook's Avatar
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    Brother, I no one in their right mind is gonna suggest you disable your rear brakes in a car you drive. Just get 'er fixed and be safe.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  13. #12 Re: rear brake line question 
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    I got my lines in today but the fittings are the wrong size. Does anyone know the specs on the fittings both abs fittings and brake hose fittings. I know there 3/16 line but I need the thread pitch
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  14. #13 Re: rear brake line question 
    Donating Users bandook's Avatar
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    M10x1
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  15. #14 Re: rear brake line question 
    Killa Bee Scottydoggs's Avatar
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    to use another nut on the line, you'll need a double flair tool to re flair the line after you cut the end off and slide the new one on there.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  16. #15 Re: rear brake line question 
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    Is the m10x1 the abs side or hose side?
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  17. #16 Re: rear brake line question 
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    From calipers to the engine bay. I don't know exactly what you mean, sorry. I just replaced them from where they hook on the distribution module under the hood to the calipers. All the hard lines.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  18. #17 Re: rear brake line question 
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    So it's the same fitting for everything?
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  19. #18 Re: rear brake line question 
    GTP Level Member CHI2000GTP's Avatar
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    If you bought pre-bent lines for a Pontiac Grand Prix and the fittings are wrong, you need to send that kit back man.


    I did this job on my maroon Grand Prix, and bought the lines from Classic Tube. Has zero issues. Make sure you keep all the rubber hoses that go to the calipers, or buy new ones. The kit doesn't come with those.




    Luke's GTP


    Luke's GTP
    2000 GTP 4DR - Stock
    243,000 miles
    CHICAGO, IL
    My Car: http://www.grandprixforums.com/members-rides/103740-lukes-gtp.html#post1443981
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  20. #19 Re: rear brake line question 
    GXP Level Member coolone's Avatar
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    +1 for Classic Tube, nice product!

    But as noted, if in a pinch, tubing and flare tool works great! Easy peasy...
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  21. #20 Re: rear brake line question 
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    So I sent that kit back and decided just to make my own lines. I got the rear perfect however my front passenger line is leaking where they send it over the exhaust pipe cause it fell on the pipe and I guess it melted? I have the 3100 v6. Can I reroute the front passenger under the pipe and send it along the subframe?
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