Wheel Speed Sensor Air Gap

1998 Subaru Forester L, AutomaticSECTION Wheel Speed Sensor Air Gap
  1. Raise vehicle, and remove wheels. Measure air gap between wheel speed sensor, located at rear of disc rotor, and each tooth of tone wheels. Tone wheels have 44 teeth. Check front and rear wheel speed sensor air gap. See WHEEL SPEED SENSOR AIR GAP SPECIFICATIONΒ  table.
  2. If gap is too small, use Spacer (26755AA000) to increase gap to specification. If gap exceeds specification, remove spacer(s) and replace tone wheel or faulty wheel speed sensor.
WHEEL SPEED SENSOR AIR GAP SPECIFICATION

Application In. (mm)
Front Wheel (1) .035 - .055 (.9 - 1.4)
Rear Wheel (1) .028 - .047 (.7 - 1.2)
(1) Maximum hub/tone wheel runout is .002" (.05 mm).
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.