Join Date: Apr 2007
Location: Mississauga, Ontario
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Glad that method worked for you, but it doesn't always.
In my case, the rust issue was worse. If you were to pull apart your uprights, you'd see a pocket formed into the upright that provides space for the reluctor wheel. The inside of that pocket is lined with stainless steel sheet metal. Because the uprights are cast steel, they are prone to rust. In snowy/salty environments, salty water gets between the stainless sheel metal and the steel upright, and causes the upright to rust. That rusty steel swells, pushing on the stainless sheet metal - pushing it inward - closer to the reluctor wheel. Eventually, the stainless will start to contact the reluctor wheel, beginning to score the tips of the teeth on the reluctor. Eventually, the teeth will be too chewed up for the sensor to read reliably.
Both my rears had this issue. So I pulled it all apart to find you cannot replace the reluctor wheels on the CV axles. I purchased some used ones on ebay with the reluctors in nice shape. Because the stainless inserts in the uprights were mangled, I removed them entirely, cleaned/ground the remaining rust, and reassembled it all.
ABS is still unhappy.
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