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Car Forum / Chrysler Cars / July 2006Antilock brake problem
I have a '96 Dodge grand caravan. After replacing the driver side cv axle, the abs brakes activate when the van slows to below 20 mph. The wheels aren't locking up or doing anything that should cause them to activate. It's happens consistently as soon as we get below 20 mph. Could the replacement of the cv axle have anything to do with it? As soon as the abs activates the vans sort of "coasts" a little bit since the brakes let loose and start pumping which is why I need to fix this ASAP. Lionel > I have a '96 Dodge grand caravan. After replacing the driver side cv > axle, the abs brakes activate when the van slows to below 20 mph. The > wheels aren't locking up or doing anything that should cause them to > activate. It's happens consistently as soon as we get below 20 mph. > Could the replacement of the cv axle have anything to do with it? Uh, yep. The tone ring for the ABS (part of the sensor mechanism that allows the ABS computer to determine when a wheel is about to skid) is on the CV joint nearest the wheel--part of what was replaced. If you got an axle without a tone ring, or if the tone ring is misaligned, or if the pick-up sensor was damaged during the swap, or if the wires to that sensor were damaged.... > As soon as the abs activates the vans sort of "coasts" a little bit > since the brakes let loose and start pumping which is why I need to > fix this ASAP. Get it in immediately. --Geoff > Get it in immediately. And pull the ABS fuse to disable the system completely before driving it anywhere! > I have a '96 Dodge grand caravan. After replacing the driver side cv > axle, the abs brakes activate when the van slows to below 20 mph. The [quoted text clipped - 5 lines] > fix this ASAP. > Lionel The "tone ring" pickup for the ABS sensor is located on the CV axle. If the replacement CV axle did not come with a tone ring, or you didn't transfer the tone ring from the old axle to the new, then the ABS system will not work correctly. I think it should set a code and disable itself in that case, however. The other possibility is that the new axle has a tone ring that doesn't match the tone ring on the other axle (different number of slots) and thus gives a false reading that one wheel is turning slower or faster, which the computer interprets as slipping wheels during braking. >I have a '96 Dodge grand caravan. After replacing the driver side cv >axle, the abs brakes activate when the van slows to below 20 mph. The [quoted text clipped - 5 lines] >fix this ASAP. >Lionel could you please tell me what they did to fix this problem i have the same problem Thank You in advance regards sam |
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