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[GMCnet] Re: Brake Pedal Slowly Goes To The Floor [message #368581 is a reply to message #368578]

Wed, 26 January 2022 10:32

James Hupy

Messages: 6806
Registered: May 2010

Karma:

Senior Member

That sounds to me like an internal failure of your master cylinder.
An old time mechanic taught me this " New parts are just new, they
are not necessarily good or serviceable". I had a similar issue with a new
master cylinder, pedal creep. Turns out the fluid was bypassing the tandem
seal inside the cylinder. When I took it apart and inspected it, the bore
finish was eccentric. Bad machining. Junk. Bought a new OEM cylinder. All
was right in the brake world.
Jim Hupy
Salem, Oregon

On Wed, Jan 26, 2022, 8:15 AM Larry wrote:

> Which 6 disc brake system are you using (rears)?
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
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[Message index]

		Brake Pedal Slowly Goes To The Floor By: Tom Katzenberger on Wed, 26 January 2022 08:54
		Re: Brake Pedal Slowly Goes To The Floor By: Larry on Wed, 26 January 2022 10:15
		[GMCnet] Re: Brake Pedal Slowly Goes To The Floor By: James Hupy on Wed, 26 January 2022 10:32
		Re: Brake Pedal Slowly Goes To The Floor By: Biggamehunter on Wed, 26 January 2022 10:40
		Re: Brake Pedal Slowly Goes To The Floor By: Rick Staples on Wed, 26 January 2022 23:03
		Re: Brake Pedal Slowly Goes To The Floor By: Christo on Thu, 27 January 2022 06:14
		Re: Brake Pedal Slowly Goes To The Floor By: Tom Katzenberger on Thu, 27 January 2022 08:52

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