| Couple of other things maybe the tone ring is not tight on the hub. Or it's not seated properly or evenly all the way around the hub. The ring could have been machined wrong and have a low spot. Could check it with a micrometer. Like mentioned could very well be condensation. Could pull out the sensors clean out hub, clean tone ring, and clean the hole on the knuckle for the sensor. I would use brake cleaner. Then allow it to dry completely, then use a silicon spray and spray the hole on the knuckle where the sensor goes. Completely soak that opening, this helps prevent condensation getting into the hub. |