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 1934 (AUTOMATIC TRANSMISSION - 6L90 - REPAIR INSTRUCTIONS - ON VEHICLE)
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6
Section 1934 (Automatic Transmission - 6L90 - Repair Instructions - On Vehicle)
2010 GMC Savana G2500, Van Cargo Extended, 6.6 6SECTION Section 1934 (Automatic Transmission - 6L90 - Repair Instructions - On Vehicle)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 GMC Savana Special, 2011 GMC Savana Camper Special, 2011 GMC Savana, 2011 Chevrolet RV Cutaway, and 2011 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Repair Instructions - On Vehicle
- Notes
- Transmission Fluid Filler Tube & Seal Replacement
- Range Selector Lever Cable Replacement
- Range Selector Lever Cable Adjustment
- Range Selector Lever Cable Bracket Replacement
- Automatic Transmission Range Selector Lever Replacement
- Transmission Fluid Cooler Pipe Seal Replacement
- Transmission Fluid Auxiliary Cooler Replacement
- Transmission Fluid Auxiliary Cooler Inlet Pipe Replacement
- Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection & Connection
- Transmission Fluid Cooler Hose/Pipe Connector Replacement
- Transmission Fluid Cooler Hose/Pipe Replacement
- Transmission Heat Shield Replacement
- Automatic Transmission Fluid Pressure Test Hole Plug Replacement
- Automatic Transmission Electrical Connector Passage Sleeve Replacement
- Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement
- Transmission Mount Inspection
- Transmission Mount Replacement (2WD)
- Transmission Mount Replacement (4WD)
- Case Extension & Gasket Replacement
- Transmission Output Shaft Seal Replacement
- Propeller Shaft Front Slip Yoke Oil Seal Replacement (Two Wheel Drive)
- Manual Shift Shaft & Seal Replacement
- Manual Shift Detent Lever & Park Pawl Actuator Replacement
- Manual Shift Shaft Position Switch Replacement
- Park Pawl Actuator Guide & Seal Replacement
- Control Solenoid Valve & Transmission Control Module Assembly Replacement
- Control Valve Lower Body & Upper Body Replacement
- Input & Output Speed Sensor Replacement
- Transmission Converter Cover Replacement
- Transmission Replacement
- Pressure Control (PC) Solenoid Valves
- Shift Solenoids
- TCC Solenoid
- Transmission Fluid Pressure (TFP) Switch
- Transmission Fluid Temperature (TFT) Sensor
- Transmission Pressure Control Solenoid
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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.