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.
2009 Hummer H2 V8-6.2LFACTORY OEM SERVICE PROCEDURE
Powertrain Component Views
Powertrain Component Views
Engine - Right Rear
1 - Valve Lifter Oil Manifold (VLOM) Assembly
2 - Ignition Coil 8
3 - Fuel Injector 8
4 - Ignition Coil 6
5 - Fuel Injector 6
6 - Manifold Absolute Pressure (MAP) Sensor
7 - Throttle Body
8 - Camshaft Position (CMP) Actuator Solenoid Valve
9 - Camshaft Position (CMP) Sensor
10 - Fuel Injector 2
11 - Ignition Coil 2
12 - A/C Compressor Clutch
13 - Fuel Injector 4
14 - Ignition Coil 4
15 - Knock Sensor (KS) 2
16 - Starter
17 - Crankshaft Position (CKP) Sensor
18 - Engine Oil Pressure Sensor
Engine - Left Rear
1 - Fuel Injector 1
2 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3 - Fuel Injector 3
4 - Fuel Injector 5
5 - Fuel Injector 7
6 - Engine Oil Pressure (EOP) Sensor
7 - Knock Sensor (KS) 1
8 - Ignition Coil 7
9 - Engine Block Heater Connector
10 - Ignition Coil 5
11 - Ignition Coil 3
12 - Engine Coolant Temperature (ECT) Sensor
13 - Battery Cable Junction Block
14 - Ignition Coil 1
15 - Generator
Behind the Engine Components
1 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
2 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
3 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
4 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Automatic Transmission Shift Lever
1 - Automatic Transmission Shift Lever
2 - Automatic Transmission Shift Lever Connector
3 - Console Harness
Transfer Case Components
1 - Transfer Case
2 - Transfer Case Encoder Motor
3 - Vehicle Speed Sensor (VSS)
Inside the Transmission Components (MYC/MYD)
1 - Control Solenoid Valve Assembly
2 - Input and Output Speed Sensor Assembly
3 - Automatic Transmission Internal Mode Switch
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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