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- - Brake warning light 90 BURB (https://67-72chevytrucks.com/vboard/showthread.php?t=166398)

steves1967

07-31-2005 12:55 AM

Brake warning light 90 BURB

I've got a 1990 Suburbqan and the darn brake warning light is on. Just came on 3 days ago. I tried unplugging the ABS computer and pluggine it back in after a few minutes- light goes out until i hit the brakes. Anybody got any idea what's up? The brakes do work fine...
Thanks!
Steve

a28doc

07-31-2005 02:51 AM

have you checked the fluid level? if it is ok then its either the master cylinder is bad or the pressure switch is bad

Doc

steves1967

07-31-2005 05:04 PM

Yeah the fluid level is fine. How can I tell if it's a master cylinder? The pedal still feels as firm as it did a week ago and there isn't any fluid leaking.
Thanks!!

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