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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2009 GMC Sierra 2500 HD, 2D Pickup, 6.0 K, 4WD, Part Time
Repair and Diagnosis
2009 GMC Sierra 2500 HD, 2D Pickup, 6.0 K, 4WD, Part TimeSECTION Repair and Diagnosis
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Quick Lookups
Common Specs & Procedures
DTC Index
Electrical Component Locations
Fluids
Technical Bulletins
Tire Fitment
Wiring Diagrams- System Wiring Diagrams - 2500 Hd
- Using lemon2025'S System Wiring Diagrams
- Wiring Systems And Power Management - Component Connector End Views Part 1
- Wiring Systems And Power Management - Component Connector End Views Part 2
- Wiring Systems And Power Management - Component Connector End Views Part 3
- Wiring Systems And Power Management - Component Connector End Views Part 4
- Wiring Systems And Power Management - Diagnostic Starting Point & Connector End View Index
- Wiring Systems And Power Management - Inline Harness Connector End Views - X100 Through X214
- Wiring Systems And Power Management - Inline Harness Connector End Views - X215 Through X800
- Wiring Systems And Power Management - Splice Pack Connector End Views
- Accessories & Equipment
- Accessories Control Systems
- Anti-Theft Systems
- Collision/Avoidance
- Communication Devices
- Cruise Control Systems
- Entertainment Systems
- Exterior Lights
- Gauges & Instrument Panels
- Headlights
- Heated Glass/Defoggers
- Horns
- Ignition Switch/Steering Lock
- Infotainment
- Interior/Exterior Trim
- Interior/Illumination Lights
- Memory Modules
- Mirrors
- Seats
- Steering Column Switches
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Body & Frame
- Brakes
- Drivelines & Axles
- Electrical
- Body Electrical
- Power Outlets
- Wiring Systems And Power Management - Introduction
- Wiring Systems And Power Management - Component Connector End Views Part 1
- Wiring Systems And Power Management - Component Connector End Views Part 2
- Wiring Systems And Power Management - Component Connector End Views Part 3
- Wiring Systems And Power Management - Component Connector End Views Part 4
- Wiring Systems And Power Management - Component Views (2 Of 2)
- Wiring Systems And Power Management - Diagnostic Starting Point & Connector End View Index
- Wiring Systems And Power Management - DTC B0005 To DTC B1475
- Wiring Systems And Power Management - Inline Harness Connector End Views - X100 Through X214
- Wiring Systems And Power Management - Inline Harness Connector End Views - X215 Through X800
- Wiring Systems And Power Management - Master Electrical Component List & Component Views (1 Of 2)
- Wiring Systems And Power Management - Service, Troubleshooting & Diagnosis
- Wiring Systems And Power Management - Splice Pack Connector End Views
- Charging Systems
- Component Locations
- Fuses & Circuit Breakers
- Instrument Panel System Displays & Gauges
- Horns
- Motors, Switches, Relays
- Power Outlets
- Wiring Systems And Power Management - Introduction
- Wiring Systems And Power Management - Component Connector End Views Part 1
- Wiring Systems And Power Management - Component Connector End Views Part 2
- Wiring Systems And Power Management - Component Connector End Views Part 3
- Wiring Systems And Power Management - Component Connector End Views Part 4
- Wiring Systems And Power Management - Component Views (2 Of 2)
- Wiring Systems And Power Management - Diagnostic Starting Point & Connector End View Index
- Wiring Systems And Power Management - DTC B0005 To DTC B1475
- Wiring Systems And Power Management - Inline Harness Connector End Views - X100 Through X214
- Wiring Systems And Power Management - Inline Harness Connector End Views - X215 Through X800
- Wiring Systems And Power Management - Master Electrical Component List & Component Views (1 Of 2)
- Wiring Systems And Power Management - Service, Troubleshooting & Diagnosis
- Wiring Systems And Power Management - Splice Pack Connector End Views
- Starter
- Wiring Diagrams
- System Wiring Diagrams - 2500 Hd
- Using lemon2025'S System Wiring Diagrams
- Wiring Systems And Power Management - Component Connector End Views Part 1
- Wiring Systems And Power Management - Component Connector End Views Part 2
- Wiring Systems And Power Management - Component Connector End Views Part 3
- Wiring Systems And Power Management - Component Connector End Views Part 4
- Wiring Systems And Power Management - Diagnostic Starting Point & Connector End View Index
- Wiring Systems And Power Management - Inline Harness Connector End Views - X100 Through X214
- Wiring Systems And Power Management - Inline Harness Connector End Views - X215 Through X800
- Wiring Systems And Power Management - Splice Pack Connector End Views
- Body Electrical
- Engine Mechanical
- Engine Performance
- Emissions
- Mode 6
- Specifications
- System
- Data Communication System
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Introduction (1 Of 2)
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Introduction (2 Of 2)
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P0010 To DTC P0230
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P0230 To DTC P0690
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P069E To DTC P3449
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Troubleshooting & Diagnosis
- Testing & Diagnosis
- Data Communication System
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Introduction (1 Of 2)
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Introduction (2 Of 2)
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P0010 To DTC P0230
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P0230 To DTC P0690
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P069E To DTC P3449
- Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Troubleshooting & Diagnosis
- General Information
- Abbreviations
- Basic Trouble Shooting
- Brakes
- Check Lists
- OBD-II Drive Cycles - 4.8L, 5.3L, 6.0L, 6.2L & 7.0L
- Driveline/Axles
- DTC Index
- Electrical
- Engine
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Hoist/Jack
- Identification
- Metric Conversions
- OEM General Information
- Reset Procedures
- RPO Codes
- Specifications Index
- Steering
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- Maintenance
- Restraints
- Steering
- Suspension
- Transmission
- Automatic Trans
- Automatic Transmission - 6L80/6L90 - Introduction (1 Of 2)
- Automatic Transmission - 6L80/6L90 - Introduction (2 Of 2)
- Automatic Transmission - 6L80/6L90 - DTC P0218 To DTC P0963
- Automatic Transmission - 6L80/6L90 - DTC P0967 To DTC P2764
- Automatic Transmission - 6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis
- Shift Interlock System
- Hydraulic Diagrams
- Transfer Case
- Automatic Trans
- External Pages
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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.