Sensor Gap

Measure the distance "A" between ABS wheel speed sensor surface and sensor pole face.

Fig 1: Measuring Distance "A" Between ABS Wheel Speed Sensor Surface

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Measure the distance "B" between surface where the front axle housing meets the ABS wheel speed sensor, and the tone wheel.

NOTE: Measure so that the gauge touches the tone wheel teeth top.

Fig 2: Measuring Distance "B" Between Surface Front Axle Housing Meets ABS Wheel Speed Sensor

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Axle housing
Tone wheel

Find the gap between the ABS wheel speed sensor pole face and the surface of the tone wheel teeth by putting the measured values in the formula below and calculating.

ABS wheel speed sensor clearance = B - A

ABS wheel speed sensor standard clearance:

0.3 - 0.8 mm (0.012 - 0.031 in)

NOTE: If the clearance is out of specification, readjust using spacer (Part No. 32009555).