Question about 1981 Chevrolet Corvette

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The 'BRAKE' light in the dash of my 1981 Corvette turned on so I added some brake fluid to the master cylinder but the light Still is on. The emergency brake never worked while I've had it but that's not my main concern unless its the cause of my problem.

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The light comes on to to let you know there is low pressure in the system. If the fluid was extremely low when you filled it the brake linings are extremely worn or you have leak in the system. I would check under the car for any signs of moisture around the brake lines. If your brake linings are good and no leaks can be found you will need to replace the master cylinder. Good luck

Posted on Sep 13, 2010

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Posted on Jan 02, 2017

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The brake sign is on,on my dashboard ?


Could be this...
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However, you were correct to add fluid to the correct level.
Just to be clear, you are talking about the red brake indicator light on the dash and is not accompanied by the amber ABS brake light.
If the ABS light is not involved, there is a magnetic switch located in the brake master cylinder. When the fluid level is low, it triggers a switch in the master cylinder and causes the light to come on.
Some times a "gentle" tap on the master cylinder reservoir will loosen the stuck float and turn the light off. One way to verify the switch is causing the issue, you can disconnect the harness connector at the master cylinder and the light should go out.
Start there and let me know.
Regards,

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paul

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