Brake warning light won't stay off - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jakes-66-K10 · 11-03-2005, 12:28 PM

My warning light used to work as it should, when starting the truck it would light up when cranking then stay off. However once in a while it would stay on, but then return to normal and I'd forget about the problem. It's slowly gone from an intermittent problem to a constant one now, the light always stays on. It's been such an annoyance I've just disconnected the wire from the prop valve.

I'm confused what activates the warning light? I thought it was if your fluid got low, or you had air in the proportioning valve. But I have bled my brakes a number of times, and they have been bled a number of times recently by different auto shops here. What else would cause the light to stay on when connected to the prop valve?

11-03-2005, 12:28 PM	#1
Jakes-66-K10 Registered User Join Date: Aug 2004 Location: Idaho Posts: 640	Brake warning light won't stay off My warning light used to work as it should, when starting the truck it would light up when cranking then stay off. However once in a while it would stay on, but then return to normal and I'd forget about the problem. It's slowly gone from an intermittent problem to a constant one now, the light always stays on. It's been such an annoyance I've just disconnected the wire from the prop valve. I'm confused what activates the warning light? I thought it was if your fluid got low, or you had air in the proportioning valve. But I have bled my brakes a number of times, and they have been bled a number of times recently by different auto shops here. What else would cause the light to stay on when connected to the prop valve?



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