gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Sensors and Switches - Fuel Delivery and Air Induction > < Digital Ratio Adapter/Controller (DRAC) - Service|Page 748
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Vehicle Speed Sensor: Service and Repair

Speed sensor resistance should be 900-2000 ohms. The sensor is not serviceable and should be replaced if defective. The speed sensor is located on the
transfer case.

1. Raise and support vehicle, then disconnect electrical connector from speed sensor.
2. Loosen sensor with suitable wrench.
3. Position suitable container under sensor, then remove sensor and O-ring.
4. Coat O-ring with transmission fluid, then install O-ring and speed sensor.
5. Torque sensor to 32 ft. lbs.

Sensors and Switches - Fuel Delivery and Air Induction > < Digital Ratio Adapter/Controller (DRAC) - Service|Page 748