Originally Posted by jdmm08
I have replaced the speed sensor at the wheel and the light remains. From what I've read that's a problem with these things. It's on my to so list but I don't see how that can be the cause of mechanical resistance/lurching etc
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If the wheel speed sensors are providing improper input, they can cause all sorts of havoc with the traction control system. This can indeed cause mechanical resistance (especially if the brakes are being applied!) and lurching.
Not saying that is your problem, and the other suggestions you received in this thread are all good as well (especially fluid quality). Just that I would start by fixing what you know isn't right and see what's left before trying to troubleshoot.