gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Speedometer Gear, A/T > < A/T - Harsh Shift/3-4 Shift Cycling|Page 3619
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Shift Modulator: Service and Repair

1. Remove modulator attaching screw and retainer.

2. Remove modulator assembly from case and discard O-ring seal.

3. Remove modulator valve from case.

4. Reverse procedure to install, using a new O-ring seal.

Speedometer Gear, A/T > < A/T - Harsh Shift/3-4 Shift Cycling|Page 3619