One problem related to brake antilock wheel speed sensor has been reported for the 1998 Lincoln Navigator. The most recently reported issues are listed below.
While traveling on highway consumer noticed that vehicle will bounce down to the ground. Dealership is aware of problem. Consumer stated the suspenison light would illuminate, the air compressor relay was replaced for the rear suspension, the front washer was inoperative, cigarette lighter was inoperative, dealer found a fuse to be blown, the abs light illuminated, right front speed sensor was replaced, also the right frnt pitman arm was replaced, and the the front pads and rotors were replaced sue to them being worn which were causing nosie to be heard by the consumer.