My ABS light and E brake light came on for a few and went out. I replaced my master cylinder a couple months ago, I know it could be going south again, but my brakes feel ok still. New fluid, no leaks, gota be getting air from somewhere, maybe I was wondering if there's anything else that causes a problem with these lights or should I just go get another master cylinder?

Thank you as always for any info

Billy D

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Could be a bad ABS sensor, or bad connection... Id check the one in the rear diff, and if you have ABS up front as well

 

Thank you