P.B. squeak

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Jul 5, 2014 | 06:32 AM

lilrobo

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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 ??

thanks

Jul 6, 2014 | 12:08 PM

AXracer

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From: Durham NC

You need to put in a good sound system with a lot of volume!

Jul 6, 2014 | 12:12 PM

lilrobo

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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

thanks

Jul 7, 2014 | 05:34 PM

lilrobo

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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

Jul 7, 2014 | 08:16 PM

avf100

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From: Lancaster, CA.

It sounds like the booster has a vacuum leak.

Jul 8, 2014 | 05:47 PM

lilrobo

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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

thanks

Jul 8, 2014 | 06:00 PM

AXracer

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From: Durham NC

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?