C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Master cylinder warning switch leaking

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Old Jan 6, 2003 | 08:57 PM
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cash's90's Avatar
cash's90
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From: Yucaipa CA
Default Master cylinder warning switch leaking

I've got a leak through my master cylinder warning switch. My assumption is that simply replacing the switch will not cure the problem. My guess is that the proportioning valve "O" rings have failed. Am I correct?
If the master cylinder needs to be replaced, any good sources?
:confused:
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Old Jan 6, 2003 | 11:12 PM
  #2  
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Default Re: Master cylinder warning switch leaking (cash's90)

I ordered an oem master cylinder from ecklers. All the places in town wanted about $250! Ecklers was $120, at least for my year.
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Old Jan 6, 2003 | 11:16 PM
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From: Cincinnati, Oh USA
Default Re: Master cylinder warning switch leaking (cash's90)

I recommend buying a new cylinder. I went through 2 rebuilts with leaking proportioning switches until I put a new master cylinder in. You may be right about the o rings.
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Old Jan 9, 2003 | 02:59 AM
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cash's90
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From: Yucaipa CA
Default Re: Master cylinder warning switch leaking (jfb)

Thanks for the responses. I ordered a new Raybestos unit from Autozone. :cheers:
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