69 GTO brake issues - Pontiac GTO Forum
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post #1 of 2 (permalink) Old 05-24-2016, 03:24 PM Thread Starter
 
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69 GTO brake issues

Took a look at some post some issues are simmar thought i would ask

My brake light will come on when I'm stopped at a light for push them hard when driving to stop . If I'm at a light and I lift off the brake just a bit the light will go away .

When I got one I opened the MC cap and noticed my rear chamber was empty ( disc front drums back ) I got Delco brake fluid from my GM dealer filled it up as I was flying up to work I did not have time to bleed the lines but the brakes were much better when I added the brake fluid . However light still Comes on .

I have checked under the car there is no fluid on my garage floor .

Possible it is filling up the booster pump ?
I will Bleed the lines as soon as in home but if that doesn't work does it sound like I'm in need of a new MC and booster?

Thanks guy cheers !
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post #2 of 2 (permalink) Old 05-24-2016, 04:48 PM
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Probably coming from the proportioning valve. Bleed the brakes that should do it. If not I have had to stomp hard on the brake peddle a few times to get the valve to reset or recenter itself. If that works, bleed the system again just in case any air was trapped in the valve.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Exhaust, Suspension, Alignment, Fuel Tank and Brakes.

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