C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jun 9, 2017 | 06:03 PM
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Hey the folks and C3 gurus....

Just changed out a set of squealing rear brake pads and that cured the squeak and squal but now my brake light is on and after several test drives and breaking it will not go off?????

All help, tech advice etc is most certainly needed..

Thanks all!!!!!

mk's78
Mike
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Old Jun 9, 2017 | 06:12 PM
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Is your emergency brake fully disengaged? only 2 clicks from the bottom turns my brake light on.
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Old Jun 9, 2017 | 06:15 PM
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Use this tool to hold the proportioning valve in a centered position. Then bleed the brakes.It can be purchased on the net for about $10.

https://www.performanceonline.com/Co...ve-Bleed-Tool/
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Last edited by Street Rat; Jun 10, 2017 at 08:28 AM.
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Old Jun 9, 2017 | 07:06 PM
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Originally Posted by karol
Is your emergency brake fully disengaged? only 2 clicks from the bottom turns my brake light on.
Yes I checked while I was out road testing it

I thought I read somewhere of a procedure that required braking hard and holding it as far as it travels to the floor??????

In any case I broke no lines and there were no caliper leaks..

Mike
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Old Jun 9, 2017 | 07:08 PM
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Originally Posted by Street Rat
Use this tool to hold the proportioning valve in a centered position. Then bleed the brakes.It can be purchased on the net for about $10.

Gee isn't there another way..as I am not very mechanically inclined
I did however check the master cylinder and both chambers were full..

Mike
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Old Jun 9, 2017 | 08:10 PM
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hit the brake pedal real hard while sitting still, that will usually reset the valve.
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Old Jun 10, 2017 | 07:11 AM
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Originally Posted by lvmyvt76
hit the brake pedal real hard while sitting still, that will usually reset the valve.
Is that with or without the engine running???

Mike
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Old Jun 10, 2017 | 08:21 AM
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Originally Posted by mk's78
Gee isn't there another way..as I am not very mechanically inclined
I did however check the master cylinder and both chambers were full..

Mike
It sounds like you have air in the brake system. The system needs to be bled by someone who knows how to work on the Corvette brake system. Do not attempt if you are not mechanically inclined. Just my opinion.
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Old Jun 10, 2017 | 08:25 AM
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Originally Posted by lvmyvt76
hit the brake pedal real hard while sitting still, that will usually reset the valve.
Yes this will reset the valve. If there are problems with the system then the brake light will just come right back on the next time you stop.Then the valve will need to be reset once again.

You can do it with or without the engine running. You will feel a little click through the brake pedal when it resets.
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