celticwarlock
Active Member
Hello all. I asked this question a little over a year ago and wasn't able to get an answer, so I'm asking it again in the hopes of figuring this out.
I have a 2000 Dodge van (5.9, rear wheel ABS) that has the ABS and BRAKE lights on. A hard stop caused the lights to come on about a year and a half ago. I chased this problem for a few weeks, and after replacing the sensor in the differential, checking the tone ring, checking the wiring, and replacing the ABS module, the lights still persisted. I gave up on it, as I didn't know where to go next.
Yesterday, I had to perform another (semi) hard stop, whereupon the lights then went out. They stayed off for a couple of hours of city driving, and then came back on again. It seems that whatever fault is causing the warning lights to come on is hydraulic in nature, and not electrical. There is no air in the system, and the brakes seem to function perfectly.
I've heard that there is a component inside the metering valve which will cause the lights to come on if it's not centered. Could this be the source of my problem? If so, which of the two blocks beneath my master cylinder contains the component in question? There are two....one with an electrical connection (3 or 4 wires, I believe), one with no electrical connection, and both with hydraulic lines attached to them. Could this be due to contamination if some kind? Would bleeding the system help somehow, even if there's no air in there?
I thank you in advance for your sage advice.
I have a 2000 Dodge van (5.9, rear wheel ABS) that has the ABS and BRAKE lights on. A hard stop caused the lights to come on about a year and a half ago. I chased this problem for a few weeks, and after replacing the sensor in the differential, checking the tone ring, checking the wiring, and replacing the ABS module, the lights still persisted. I gave up on it, as I didn't know where to go next.
Yesterday, I had to perform another (semi) hard stop, whereupon the lights then went out. They stayed off for a couple of hours of city driving, and then came back on again. It seems that whatever fault is causing the warning lights to come on is hydraulic in nature, and not electrical. There is no air in the system, and the brakes seem to function perfectly.
I've heard that there is a component inside the metering valve which will cause the lights to come on if it's not centered. Could this be the source of my problem? If so, which of the two blocks beneath my master cylinder contains the component in question? There are two....one with an electrical connection (3 or 4 wires, I believe), one with no electrical connection, and both with hydraulic lines attached to them. Could this be due to contamination if some kind? Would bleeding the system help somehow, even if there's no air in there?
I thank you in advance for your sage advice.