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post #1 of (permalink) Old 08-09-2004, 02:59 PM
cat302
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92 yj brake problem

The right front brake locked on this yj. My husband bought new rotors, calipers & pads. After installing & bleeding the brakes, there is no brake pedal. (at all...pumping doesn't even help.) He then replaced the master cylinder amd booster. Now the pedal goes to the floor on the first try, but they will pump up on the second try. Any suggestions?
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post #2 of (permalink) Old 08-09-2004, 03:23 PM
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Re: 92 yj brake problem

I would bleed the brakes a few more times (if you have already tried) and make sure they are bled good. Makes sure you are starting with the furthest wheel and working your way into the closest wheel to get all the air out.
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post #3 of (permalink) Old 08-09-2004, 04:13 PM
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Re: 92 yj brake problem

We've bled them several times, even bench bled master cylinder after replacing it. (Thought it may be bad). We even gravity bled for 20 minutes. Do you think we should keep bleedin' or do you think the calipers & pads could be bad? (Bought them from Auto Zone). I was thinking that because we had brake pedal prior to replacing front brakes.
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post #4 of (permalink) Old 08-09-2004, 05:02 PM
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Re: 92 yj brake problem

Make sure the calipers are opposites and not the same one. The bleeder screws should be at the top too. I speak from experience. I bought my jeep and kept trying to get the spongyness out of the brake system. After I had it for 4 years, I did an axle swap to a widetrack. It was then that I realized the previous owner had put a driver's caliper on the passenger side. I replaced that with the correct caliper and have had wonderful brakes since.

Since you said that the calipers had been replaced is why I suggest to look.
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post #5 of (permalink) Old 08-09-2004, 06:29 PM
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Re: 92 yj brake problem

The calipers are right...bought them from Auto Zone. The bleeder screws are where they're supposed to be, too. I'm just wondering if the calipers could be faulty...What do you think?
post #6 of (permalink) Old 08-09-2004, 07:15 PM
 
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Re: 92 yj brake problem

I think you still have air in them. You should take it to a brake shop and get them power bled. The problem is you have changed out all the parts that hold a lot of fluid, (they also hold a lot of air) You will need to get an abnormal amount of fluid through them to get the air out.

Power bleeding, (with pressure bleeder) is the best cheapest and fastest way to do it. Most brake shops will be able to do this. You can check the web out for power bleeders and buy one for future use if you so desire.
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post #7 of (permalink) Old 08-09-2004, 08:45 PM
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Re: 92 yj brake problem

Will,
Thanks for the great advice. The bleeder screws were on the bottom not the top. YOU ARE THE MAN!!! Brake problem solved for now...

HUGS AND KISSES :-)
post #8 of (permalink) Old 08-09-2004, 08:51 PM
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Re: 92 yj brake problem

Huh.... didn't put them on the wrong sides now did ya???

Funny how things like that happen. Great that it worked out.

Dale
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post #9 of (permalink) Old 08-09-2004, 09:03 PM
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Re: 92 yj brake problem

awww [img]images/graemlins/blush.gif[/img]
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