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P.B. squeak

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Old 07-05-2014, 07:32 AM
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P.B. squeak

i was out driving this week and i have develop a squeak when pushing the pedal , i have tried to lube things on what i see , i think it might be on the inside ? i never took a booster off the master cylinder before ,, i just dont know, its not the pedal pivot,,its kinda like a air sound too ,, i have great breaks ( power ) ,, do i need to take the booster off the cylinder ??

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Old 07-06-2014, 01:08 PM
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You need to put in a good sound system with a lot of volume!
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Old 07-06-2014, 01:12 PM
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i am going to contact the people i bought it from , got to be something going on , kinda like air breaks lol

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Old 07-07-2014, 06:34 PM
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i called them to day and they want me to check the check value ,, it was fine , no leaks , i did the test on it and while it was not running it made the sound until it pumped up and it stopped , after i started it up and it sucked more air it started to make the sound again ,, so i guess i call them again
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Old 07-07-2014, 09:16 PM
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It sounds like the booster has a vacuum leak.
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Old 07-08-2014, 06:47 PM
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i have check the check value , and it holds ,, if i take the master loose and side it out will i see anything ? or is there anything else to check,or do i need to just replace it

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Old 07-08-2014, 07:00 PM
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Check valve is cheap and easy to change. Check rubber seal it plugs into and vacuum hose for cracks. I've never seen a booster itself develop a crack or leak unless over tightened when installed. Do you have a dual diaphragm booster? If so maybe one diaphragm is ruptured?
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Old 07-08-2014, 07:05 PM
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thanks ax
i have looked at that also it seems to fit fine ,, real snug ,,i think you mya be right about the dual diaphragm booster,, if one is bad would i still have good breaks ?? make sense for sure

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