gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Throttle Position Sensor > < Automatic Transmission - 4L80-E/4L85-E|Page 3259
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Vehicle Speed Sensor: Service and Repair
Automatic Transmission - 4L60-E/4L65-E

Vehicle Speed Sensor (VSS) Replacement

Removal Procedure

1. Raise the vehicle. 
2. Remove the electrical connector from the speed sensor.

3. Remove the bolt.
4. Remove the speed sensor and the O-ring seal.
5. Inspect the seal and the transmission case. Replace the seal, if necessary.

Installation Procedure

1. Install the speed sensor and the O-ring seal into the transmission.

2. Notice: Refer to Fastener Notice in Service Precautions.

Install the bolt.
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Tighten the bolt to 11 Nm (97 inch lbs.).

3. Install the electrical connector to the speed sensor.
4. Lower the vehicle.

Throttle Position Sensor > < Automatic Transmission - 4L80-E/4L85-E|Page 3259