Front

TESTING THE WHEEL SPEED SENSOR

1. Check pulser for chipped or damaged teeth and replace as necessary.

Fig. 82 Measureing Front Speed Sensor Air Gap:

2. Measure air gap between sensor and pulser all the way around while rotating driveshaft by hand, Fig. 82. If gap exceeds its maximum specification at any point, the knuckle is most likely distorted and should be replaced. Air gap should be 0.020-0.040 inches.