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Spongy pedal; leaking master cylinder sensor... Ideas ?

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Spongy pedal; leaking master cylinder sensor... Ideas ?

  #1  
Old 04-05-2017, 05:17 PM
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Join Date: Apr 2017
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Default Spongy pedal; leaking master cylinder sensor... Ideas ?

Hi folks !

I bought a 1994 Corvette almost a year ago, drove it for around 1500 miles without any problem.
The previous owner told me that one sensor at the master cylinder was leaking but just a bit, so he added brake liquid when needed. So did I.
I noticed last month that the pedal was a bit spongy, took it for a drive then disappeared.
I maybe drove 200 miles then , yesterday, I just wanted to move the car in the garage and found a spongy pedal that went all the way down with very poor brakes that could hardly stop the car...

I pressed the pedal about 10 times and it was hard again. I took it for a 30 miles drive, no problem.

Here are pictures of the sensor I'm talking about. it's not between the white plastic part and the metal of the master cylinder that it's leaking but seems to be between the white and black plastics, or at the rear of the black plastic as the metal wire can be seen.

What are your advices ?
 
Attached Thumbnails Spongy pedal; leaking master cylinder sensor... Ideas ?-17799045_10154448700043015_4542151261267968853_n.jpg   Spongy pedal; leaking master cylinder sensor... Ideas ?-17796038_10154448700598015_1433754072002586718_n.jpg   Spongy pedal; leaking master cylinder sensor... Ideas ?-17629705_10154448700483015_426637651061864895_n.jpg  
  #2  
Old 04-06-2017, 05:49 PM
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Join Date: Apr 2006
Location: KC, MO area
Posts: 2,744
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Assuming that the fluid level is good, probably need a new master cylinder. What's the sensor for, fluid level?
 

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