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 MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1166 (AUTOMATIC TRANSMISSION - ALLISON - INTRODUCTION (2 OF 2))
2006 Chevrolet Suburban C2500, 6.0 U
Section 1166 (Automatic Transmission - ALLISON - Introduction (2 Of 2))
2006 Chevrolet Suburban C2500, 6.0 USECTION Section 1166 (Automatic Transmission - ALLISON - Introduction (2 Of 2))
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Temperature Versus Resistance (Transmission Fluid Temperature Sensor)
- Temperature Versus Resistance (Speed Sensor)
- Temperature Versus Resistance (Solenoid)
- Fastener Tightening Specifications
- Torque Converter Specifications
- Transmission General Specifications
- Fluid Capacity Specifications
- Pressure Switch Manifold (PSM) Logic
- Transmission Internal Mode Switch Logic
- Solenoid and Clutch Chart (Tow/Haul)
- Solenoid and Clutch Chart (Normal Mode)
- Shift Speed (1-2 and 2-3 Shifts)
- Shift Speed (3-4, 4-5, 5-6, and CT Downshifts)
- Line Pressure
- End Play Specifications
- Selective Components Specifications
- Oil Pump Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
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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.