i just redid my calipers, rotors, and pads in the front now the jeep wont build up pressure in the brakes even after i bled the several times...the guy at the parts store said that it may be the front brake lines he said sometimes when you change the caliper they end up collapsing internally is this at all possible oh and there is no vissible leaks thanx for you help again

 

Sad but true I had the same problem just recently and yes they can do that.

 

How did you bleed the brakes?

Did you have someone pump the brakes while you open and closed the bleeder? I have tried it this way but have better luck connecting a piece of hose to the bleeder and putting it in a small cup of brake fluid. I leave the bleeder open and pump the brakes. It will eventually push the air out and will have no choice but to suck fluid back in when you let off.

And as already confirmed the rubber brakes hoses can collapse.

 

I bleed my brakes like prerunner1982 does and as stated before... 1. How did you bleed the brakes? 2. Did you connect them back togethor properly?

 

I typically only bleed the front when I do pads/rotors, but seeing as how you replaced the calipers there is a good change air backed up to the proportioning valve and could have been pushed into the rear brake lines as well. Also if you have ABS I have had problems bleeding them as well.

 

1.okay so the hoses collapse internally even if there is no visible sign of damage...2. i did bleed the brakes very well...3. should i use the cup metho...4.thanx

 

I have had better luck bleeding them with the cup of fluid over the open and close with a wrench method. They make kits to bleed them like that, but I made my own. I always thought I was doing a good job in the past but come to realize my reaction time was too slow.

 

so im better off gettin new lines even though the appear to be fine??

 

keep bleeding them.... rear pass., rear driver, front pass, front driver. Put tubing over bleeder screw other end in bottle or cup or brake fluid. Open bleeder press down close bleeder let off pedal. If you let the reservoir run dry your gonna have tons of air in there, keep trying if that doesnt work you might have another problem.

 

first, make sure the calipers are on the correct sides.
the bleeder nut has to be above the brake line.

don't worry, common mistake.

 

is it really cause that was wat i did and i didnt wanna put that on there cause i fig'd i would be laughed at

now the brakes work excellent i barely use a 1/4 of the peddal to come to a complete stop and smooth as ice

 

+10

I did the same thing on a mustang I used to own. I got for $300 for that mistake once.

 

Definitely a common mistake, no shame in it.

 

I never been able to figure out people that would slam someone for that, after all we learn from our mistakes. Now you know and can help others in the future.

 

yeah i no so true...now my rakes are excellent no spongy pedal very quick to react and the peddal doesnt go to the florr anymore
i was really surprised with the compan i used i would deff recomend them to anyone the brand was Raybestos