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Replaced everything from the master cylinder back to the wheel cylinders.All fittings teflon taped and tight,no leaks showing anywhere.
I keep getting air in the lines and can't find where it's getting in,there is no visible leakage.
Anybody had this problem ???

2007-09-01 05:48:07 · 9 answers · asked by Anonymous in Cars & Transportation Car Makes Ford

9 answers

the Teflon tape is the trouble..
on flair type fitting it won't let the flairs seat properly

yes i bought a old t-bird with this problem..
removed every fitting, removed tape ,retightened
everything was good after that..

p.s. good to see you again,
they killed me 1 too many times in politics .
so i don't go there anymore....god bless America

2007-09-01 06:02:06 · answer #1 · answered by Anonymous · 2 0

First remove the Teflon tape. Why use it in the first place? Brake fittings do not need any sealants. All fittings need to be tight and you need to make sure you do not cross thread any of them. It depends on the make and year of the car, so you need to check with a dealer, shop, or manual on the proper way to bleed the brakes, some need the engine to be running and some not. If your car has anti-skid it will be different also. You need to keep the master cylinder filled while you are bleeding the breaks,if it gets low it will suck air and you will have to start over . Do not let your helper release the brake pedal before you tell them to,as that will suck air back in to the wheel cylinder. If you have a hand vacuum pump, that is probably the best way to bleed the system at each wheel. You also have to bleed the wheel cylinders in order.

2007-09-01 06:11:58 · answer #2 · answered by blackheart_987 5 · 1 1

As others said the teflon tape is one issue.. unless the flare can but up against the body, it can allow air in for one.. (and teflon actually seals the threads but doesn't make a fitting really tight like it's supposed to.

also did you bleed the master cylinder correctly? as some can hold the air until bench bled.

2007-09-01 12:00:59 · answer #3 · answered by gearbox 7 · 0 0

Did you bench bleed the grasp Cylinder? after which initiate bleeding on the tire furthest from the grasp Cylinder, working your thank you to the closest? in case you do not it particularly is achievable for there to nonetheless be air interior the lines, even a splash in a million line would reason the entire gadget to sense spongey. yet another element is, the bleeding equipment you used, i've got not had lots expirence with them, I nonetheless do brake bleeding as a 2 guy interest, possibly some thing exchange into carried out incorrect. If somebody else has greater perception on the kits and how nicely they paintings, hear to them, i've got not had lots expirence with the a million guy or woman brake bleeding kits.

2016-11-13 22:15:40 · answer #4 · answered by kennebeck 4 · 0 0

Teflon tape is a thread sealer, and since no threads seal in a brake system, it is not needed. The flare on the end of the tube does the sealing, and tape on the nut will not allow the nut to seat the flare, because it cannot screw in far enough.

2007-09-01 06:10:47 · answer #5 · answered by eferrell01 7 · 2 0

When your dealing with brake lines - DON'T use tape on the joints - they are flared with the barrels for a reason - that is what seals them.

When you put tape on there not only does it cause leaks - but it also could block the inside of the line and cause a lot of damage.

Remove all the thread tape, and re tighten the lines.

2007-09-01 06:08:04 · answer #6 · answered by cgriffin1972 6 · 2 0

i dont want to sound like a broken record so I wont bother to answer the question. Everyone else already gave the correct answer. I am just currious to why someone gave blackheart a "thumbs down" His answer seems correct. Does someone have an explanation to why he got a "thumbs down"? Is part of his answer wrong? I don't know blackheart, I am just currious for my own knowlege because I plan to do a future brake change over and I am trying to learn everything possible about brakes.

2007-09-01 06:45:36 · answer #7 · answered by Spartan Mike K 6 · 2 0

If front brake caliper's were change, make sure the bleeder valve is at the top, if you have 4 wheel ABS, you may need a computer to bleed the system

2007-09-01 07:51:55 · answer #8 · answered by 144289 7 · 0 2

yo mama do

2007-09-02 04:08:25 · answer #9 · answered by Anonymous · 0 0

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