JY95ZJ

So as the title says I installed some extended brake lines (around 22 inches) in the front and now have no pressure even after pumping the brakes slowly and rapidly the pedal goes straight to the floor. All the fittings are tight and no leaks that I have seen. Everything worked perfectly before the new lines, any help is greatly appreciated

Thanks everyone

97grand4.0

Only did lines? get a bottle bleeder. $8 at advanced. Open a bleeder and stick it in, follow directions. One man bleed operation.

JY95ZJ

Well I haven't had a chance to even bleed them yet, would it restore pressure with just regular bleeding?

97grand4.0

You lost me. Of course you must bleed a new line to get any pressure. Regular, 2 man, pump it up and hold it (and then open the bleeder screw) will likely work but the bottle is easier.
Sounds to me like you need to watch some youtubes on how to bleed brakes might be helpful.

JY95ZJ

I know how to bleed the brakes I just didn't have time after installing the lines I just pumped them a little after I installed them, I know I should have done it I was kinda rushed I'm a stay at home dad with 3 kids man so I usually have very little time to actually get out and work on my jeep.

JY95ZJ

Thanks for the info though

Bustedback

Really? Brakes 101, any time you open the brake hydraulic system to atmosphere you MUST bleed them. If you replace a left front hose, you bleed the left front. You don't have to bleed the whole system, only the part of the system that was open to atmosphere.

dave1123

Here's what I would do. Open the front bleeders (both sides). Hit the brake pedal to the floor then release. Wait until fluid starts to run out of the bleeder screws, then close them. Try the brakes again. Hitting the brakes with the bleeders open allows the air in the hoses to blow the fluid in the calipers out, thus starting a flow of fluid to fill the hoses and calipers again. Make sure the reservoir doesn't go dry or you'll have to start from square 1 with the WHOLE system.

This is known as a "gravity bleed." It's about 90% effective if you are alone and can't fully bleed the brakes properly. You've got to get the air in the hoses out before you'll get ANY pressure.

wingless

The ZJ requires three bleeds to be done properly, as-shown in this reply.

My tool for the fluid is the Motive Products Power Bleeder. It makes this an easy one-man operation.

JY95ZJ

Finally got a chance to get out and finish up my brakes today, successful test drive, and stop. Thanks for the input everyone