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Old 07-20-2015, 07:23 AM
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Issue with bleeding the brakes

Hello,

So I have pulled all my calipers off to paint and have gone to bleed all the brakes but it just doesn't seem like it's building pressure. I keep topping up the reservoir and keep pumping the brakes while a mate releases the bleed screws and have been doing so for about an hour and a half to all four brakes but the brake pedal just doesnt seem to build up pressure. Brake fluid is trickling out and there doesn't seem to be any air bubbles in the front tow lines either.

Just wandering if there is anything else that I need to do in order for the tension in the brake pedal to build up again. I have even tried bleeding them with the car turned on but nothing seems to work..

I have a 2015 Jeep Grand Cherokee Laredo by the way.

Thanks for your help

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Old 07-20-2015, 10:18 AM
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Re: Issue with bleeding the brakes

You say your mate is opening the bleed screw(s).


If you haven't successfully got one wheel done, preferably the right rear, IIRC the others should remain closed. If you allowed the fluid to drain from the calipers when they were off, it could take a bit of fluid and time doing it by pumping the pedal.


If you have no success working with even one wheel, and you've checked for leaks, you might want to rent a pressurized brake bleeder from a local parts shop.


Hopefully somebody with more recent hands on experience than I have will chime in.




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Old 07-21-2015, 02:27 PM
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Re: Issue with bleeding the brakes

The best way to bleed is with a reverse bleeder, where you feed new fluid from each wheel up into the master cylinder [being careful to avoid overflow] as that drives any bubbles up and out without wasting as much fluid.

Hopefully you started with all wheel valves closed and opened each one just a teensy bit and as soon as the output fluid is clear, closed it before letting up pressure.

If the pedal goes all the way down, you'd need to close the valve before you take your foot off the pedal or you can get rather nasty bubbles.

If you have an Autozone, dunno if they'd loan the reverse power bleeder pumps out or not--never hurts to call and ask. They aren't THAT expensive to buy---much cheaper than higher insurance bills for you or the vehicle.
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Old 07-21-2015, 02:53 PM
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Re: Issue with bleeding the brakes

Thanks very much for the replies, I will use this info and give it another try
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