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Old 04-26-2013, 07:37 PM   #1
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brake pressure issue

I recently did work to my brakes, I have checked and double checked to see if anything is leaking. It's not. I bled the system and have pressure on the brake pedal when the vehicle is off but when it is running I need to pump it a few times. Any ideas, I think my Master cylinder is bad.

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Old 04-26-2013, 07:58 PM   #2
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Do you replace calipers? If so make sure they are on the right side also make sure they are bled

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Old 04-26-2013, 10:55 PM   #3
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No I didn't replace calipers I patched lines. No leaks now though.
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Old 04-26-2013, 11:17 PM   #4
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I would bled till you have new fluid if that doesn't work replace the master
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Old 04-27-2013, 12:25 AM   #5
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I bled for a while and I even put a vacuum fun on and didn't get much out of it.
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Old 04-27-2013, 06:46 AM   #6
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I would replace master cylinder. Probably an internal seal leak.
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Old 04-27-2013, 11:43 AM   #7
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Also make sure the rear brakes are adjusted correctly that can cause this problem too
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Old 05-03-2013, 09:27 PM   #8
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Ended up it was the master and there was also a little air in the calipers

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