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Re: Brake Pedal Slowly Goes To The Floor [message #368589 is a reply to message #368576]

Wed, 26 January 2022 23:03

Rick Staples

Messages: 126
Registered: May 2014
Location: Johnstown, Colorado, USA

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Senior Member

Tom, If you aren't losing fluid from the system, it is almost certainly a defective/damaged master cylinder. The classic test of a master cylinder involves first "stabbing" the brake pedal (stepping on it hard and fast). This will often cause a worn piston cup to momentarily seal and hold pressure. Then release the pedal and rest your foot lightly on it and slowly push down. A bad master will seep fluid back into the reservoir, and the pedal will sink.

HTH
Rick Staples

Rick Staples, '75 Eleganza, Johnstown, CO "Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien

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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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