Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2010SAVANA G2500, VAN CARGO EXTENDED, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 29 (AUTOMATIC TRANSMISSION - ALLISON - DIAGNOSIS)REMOVAL & INSTALLATIONTRANSFER CASE SWITCH & TRANSFER CASE SHIFT CONTROL MODULEINSTALLATION
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6
Transfer Case Switch & Transfer Case Shift Control Module: Installation
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6SECTION Installation
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Install the shift control module to the bracket. See Figure.
- Connect the shift control module harness connectors. See Figure.
- Start the engine and test the automatic transfer case system for proper shift operation.
- Position the selector switch close to the housing so the electrical connectors can be connected. See Figure.
- Connect the selector switch electrical connectors (2 and 3). See Figure.
- Slide the selector switch into the housing until the switch snaps into place.NOTE: Make sure that the selector switch is seated properly in the housing before installing the I/P cluster bezel.
- Install the I/P cluster bezel.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.