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Old 10-19-2011, 11:49 AM   #1
Join Date: Jul 2011
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Question Ax15 fluid, brakes dead

Sorry to post questions I could search for, but my laptop broke, I only have an old phone with Internet and it won't let me search the boards. Thanks guys

Ax15. Was told it takes regular 10-30 motor oil? I want to change the fluid

I put all new brakes on, calipers, drums, rotors, lines. I bled the brakes twice but I have no brake pedal. Gies to the floor then builds pressure after a few pumps. There is no air in the lines, or at least zero coming out each bleeder after second bleed. Friend thought it might be master but Im not sure. Please let meknow what you think. Thanks


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Old 10-19-2011, 01:26 PM   #2

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master sounds possible, but i'd think you'd see fluid coming from somewhere. it does seem like the only logical explanation however if you've bled correctly and there is no air in the lines.


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Old 10-21-2011, 03:42 PM   #3
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sounds like air somewhere... with replacing those parts Im surprised you only blead twice. Did the resevoir ever run empty??? If so, you may have sucked air in the opposing end and need to start over.

Be sure to bleed from the farthest from the resevoir to the closest. Start w/the right rear, then left rear then right front then left front. And be sure to check the resevoir twice per wheel that you are bleeding to be sure it does not suck air. In order to flush air from the entire line, you will go through quite a lot of brake fluid and need to fill the res. up at least a few times during the process.

Normally its not that bad, but after replacing parts that use up half the res. to fill (calipers) I can understand your frustration. Personally, I think if you stick it out and start over you'll be happy with the results. And if not, well, unfortunately you'll have to start over again. Its a picky system. Even a little air in there somewhere will ruin the pedal pressure. And remember, the first few inches of the pedal going down is governed by the rear brakes. So if your loosing pedal pressure, there is prob. air in the longer lines somewhere.
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Old 10-21-2011, 04:04 PM   #4
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I agree with redoing the bleeding. If it still has no pedal then I would be looking at the master. They don't have to leak to be bad.
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Old 10-21-2011, 05:19 PM   #5
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are you bleeding by yourself? if so, make sure you're using something to keep the brake pedal depressed. not all the way too the floor, but about where you would be at under normal braking pressure.

I've done brakes before without doing this, but i think it saves an awful lot of fluid, and the brakes will be tighter. i just use a 2x4 pressed against the seat and brake. bleed rear passenger, tighten valve lose the brake loosen drivers side rear, push brake pedal and lodge 2x4 close valve and so on and so forth. start from the furthest wheel from cylinder, in jeeps case rear passenger. and the front passenger and the front drivers. with a whole new system you'll likely run through 2 or 3 small bottles of brake fluid.
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