Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
2. Drain the transmission, refill when repair is completed. Refer to Transmission Fluid Replacement
3. Remove the left engine splash shield. Refer to Engine Splash Shield Replacement - Left Side
4. Remove the left transmission mount and bracket. Refer to Transmission Mount Replacement - Left Side.
5. Remove the control valve body cover. Refer to Control Valve Body Cover Replacement.
6. Perform the service fast learn adapt procedure. Refer to Service Fast Learn Adapts.

1

Input Speed Sensor (ISS) Wire Harness

Procedure

Attach the DT-47734 speed sensor harness tether to the ISS electrical connector locking tab before removal of old ISS to assist in installation of the new ISS.

Special Tools

DT-47734 Speed Sensor Harness Tether

2

Input Speed Sensor Bolt M6 x 25

Caution: Refer to Fastener Caution in the Preface section.

Procedure

Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the input speed sensor bolt.

Tighten
9 N·m (80 lb in)

3

Input Speed Sensor

Tip
After an internal transmission repair or internal part replacement the service fast learn adapt procedure should be performed.

4

Input Speed Sensor Seal