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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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 448 (ENGINE MECHANICAL - 6.6L (LB7) (INTRODUCTION))COMPONENT LOCATORDISASSEMBLED VIEWS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Disassembled Views
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Disassembled Views
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Idler Pulley Bolt |
| 2 | Idler Pulley |
| 3 | Idler Pulley Bolt |
| 4 | Idler Pulley |
| 5 | Generator Mounting Bracket Bolt |
| 6 | Drive Belt Tensioner Bolt |
| 7 | Drive Belt Tensioner |
| 8 | Generator Mounting Bracket |
| 9 | Fuel Injection Control Module Harness Bracket Nut |
| 10 | Schrader Valve Bracket |
| 11 | Schrader Valve |
| 12 | Fuel Injection Control Module Harness Bracket |
| 13 | Schrader Valve Hose |
| 14 | Engine Assembly |
| 15 | Power Steering Pump Bracket |
| 16 | Power Steering Pump Bracket Bolt |
| 17 | O-ring |
| 18 | Water Pump Bolt |
| 19 | Water Pump |
| 20 | Water Pump Bolt |
| 21 | Crankshaft Balancer Bolt |
| 22 | Crankshaft Balancer Washer |
| 23 | Crankshaft Balancer |
| 24 | Cooling Fan Pulley Bolt |
| 25 | Cooling Fan Pulley Nut |
| 26 | Oil Separator Cover Bolt |
| 27 | Oil Separator Cover |
| 28 | Cooling Fan Pulley |
| 29 | Cooling Fan Pulley Insulator |
| 30 | Cooling Fan Pulley Stud |
| Callout | Component Name |
|---|---|
| 1 | Idler Pulley Bolt |
| 2 | Idler Pulley |
| 3 | Idler Pulley Bolt |
| 4 | Idler Pulley |
| 5 | Generator Mounting Bracket Bolt |
| 6 | Drive Belt Tensioner Bolt |
| 7 | Drive Belt Tensioner |
| 8 | Generator Mounting Bracket |
| 9 | Fuel Injection Control Module Harness Bracket Nut |
| 10 | Schrader Valve Bracket |
| 11 | Schrader Valve |
| 12 | Fuel Injection Control Module Harness Bracket |
| 13 | Schrader Valve Hose |
| 14 | Engine Assembly |
| 15 | Power Steering Pump Bracket |
| 16 | Power Steering Pump Bracket Bolt |
| 17 | O-ring |
| 18 | Water Pump Bolt |
| 19 | Water Pump |
| 20 | Water Pump Bolt |
| 21 | Crankshaft Balancer Bolt |
| 22 | Crankshaft Balancer Washer |
| 23 | Vacuum Pump Bolt- California Emissions |
| 24 | Vacuum Pump Pulley - California Emissions |
| 25 | Crankshaft Balancer |
| 26 | Vacuum Pump - California Emissions |
| 27 | Cooling Fan Pulley Nut |
| 28 | Cooling Fan Pulley Bolt |
| 29 | Oil Separator Cover Bolt |
| 30 | Oil Separator Cover |
| 31 | Cooling Fan Pulley |
| 32 | Cooling Fan Pulley Insulator |
| 33 | Cooling Fan Pulley Stud |
| Callout | Component Name |
|---|---|
| 1 | Fuel Injection Control Module Bracket |
| 2 | Fuel Injection Control Module Bracket |
| 3 | Fuel Injection Control Module Bracket Bolt |
| 4 | Fuel Injection Control Module Bolt |
| 5 | Fuel Injection Control Module Bolt |
| 6 | Bracket |
| 7 | Fuel Injection Control Module Insulator |
| 8 | Fuel Injection Control Module Sleeve |
| 9 | Fuel Injection Control Module Insulator |
| 10 | Fuel Injection Control Module |
| 11 | Fuel Filter Assembly |
| 12 | Engine Wiring Harness |
| 13 | Flex Plate |
| 14 | Dowel Pin |
| 15 | Flywheel Washer |
| 16 | Flywheel Bolt |
| 17 | Flywheel (Manual Transmission) |
| 18 | Flywheel (Automatic Transmission) |
| 19 | Dowel Pin |
| 20 | Ring Gear |
| 21 | O-ring |
| 22 | O-ring |
| 23 | Engine Oil Cooler |
| 24 | Oil Filter |
| 25 | Engine Oil Cooler Bolt |
| 26 | Oil Pressure Sensor |
| 27 | Engine Assembly |
| Callout | Component Name |
|---|---|
| 1 | Fuel Pipes Assembly |
| 2 | Fuel Inlet Distribution Block |
| 3 | Fuel Inlet Distribution Block Nut |
| 4 | Fuel Inlet Distribution Block Bolt |
| 5 | Fuel Pipe Bolt |
| 6 | Fuel Pipe |
| 7 | PCV Hose |
| 8 | Intake Manifold Tube |
| 9 | Turbocharger Boost Sensor Bracket |
| 10 | Turbocharger Boost Sensor Bolt |
| 11 | Turbocharger Boost Sensor |
| 12 | Intake Manifold Tube Bolt |
| 13 | Intake Heater Gasket |
| 14 | Intake Heater |
| 15 | Turbocharger Heat Shield (Upper) |
| 16 | Turbocharger Heat Shield (Upper) Bolt |
| 17 | Turbocharger |
| 18 | Exhaust Outlet Adapter Gasket |
| 19 | Exhaust Outlet Adapter |
| 20 | Heat Shield |
| 21 | Heat Shield Bolt |
| 22 | Exhaust Outlet Adapter Nut |
| 23 | Exhaust Outlet Adapter Stud |
| 24 | Turbocharger Bolt |
| 25 | Turbocharger Heat Shield (Lower) |
| 26 | Intake Manifold |
| 27 | Intake Manifold Bolt |
| 28 | Exhaust Pipe Gasket |
| 29 | Exhaust Pipe |
| 30 | Exhaust Pipe Gasket |
| 31 | Exhaust Pipe Bolt |
| 32 | Exhaust Outlet Bracket |
| 33 | Exhaust Pipe Bolt |
| 34 | Exhaust Pipe Gasket |
| 35 | Exhaust Pipe |
| 36 | Heat Shield |
| 37 | Heat Shield Bolt |
| 38 | Exhaust Pipe Bolt |
| 39 | Exhaust Pipe Gasket |
| 40 | Exhaust Manifold Gasket |
| 41 | Exhaust Manifold |
| 42 | Exhaust Manifold Washer |
| 43 | Exhaust Manifold Beveled Washer |
| 44 | Exhaust Manifold Nut |
| 45 | Heat Shield |
| 46 | Heat Shield Bolt |
| 47 | Exhaust Manifold Bolt |
| 48 | Engine Assembly |
| 49 | Exhaust Manifold |
| 50 | Exhaust Manifold Bolt |
| 51 | Heat Shield |
| 52 | Heat Shield Bolt |
| 53 | Exhaust Manifold Nut |
| 54 | Exhaust Manifold Beveled Washer |
| 55 | Exhaust Manifold Washer |
| 56 | Exhaust Manifold Gasket |
| 57 | Turbocharger Oil Supply Line Eye Bolt |
| 58 | Turbocharger Oil Supply Line |
| 59 | Intake Manifold Bolt |
| 60 | Intake Manifold |
| 61 | Intake Manifold Stud |
| 62 | Intake Manifold Nut |
| 63 | Intake Manifold Bolt |
| 64 | Intake Manifold Stud |
| 65 | Intake Manifold Tube Stud |
| 66 | Intake Manifold Tube Gasket |
| 67 | Intake Manifold Tube Nut |
| Callout | Component Name |
|---|---|
| 1 | Fuel Pipes Assembly |
| 2 | Fuel Inlet Distribution Block |
| 3 | Fuel Inlet Distribution Block Nut |
| 4 | Fuel Inlet Distribution Block Bolt |
| 5 | EGR Bolt |
| 6 | EGR Valve |
| 7 | EGR Valve Gasket |
| 8 | EGR Cooler |
| 9 | Heater Pipe Bracket |
| 10 | EGR Nut |
| 11 | Water Cooler Outlet Hose |
| 12 | Water Cooler Outlet Hose Clamp |
| 13 | EGR Cooler Bracket |
| 14 | Water Hose Connector |
| 15 | EGR Cooler Bracket Bolt |
| 16 | Intake Throttle Nut |
| 17 | EGR Stud |
| 18 | Intake Throttle Gasket |
| 19 | Fuel Pipe Bolt |
| 20 | Fuel Pipe |
| 21 | Intake Manifold Tube Stud |
| 22 | Intake Manifold Tube Nut |
| 23 | Intake Manifold Tube Gasket |
| 24 | Intake Manifold Tube Bolt |
| 25 | Intake Manifold Tube |
| 26 | Intake Throttle Gasket |
| 27 | EGR Orifice |
| 28 | Intake Throttle Stud |
| 29 | Intake Throttle |
| 30 | Turbocharger Boost Sensor Hose |
| 31 | Turbocharger Boost Sensor |
| 32 | Turbocharger Boost Sensor Bolt |
| 33 | Turbocharger Boost Sensor Bracket |
| 34 | Intake Heater |
| 35 | Intake Heater Gasket |
| 36 | PCV Hose |
| 37 | Turbocharger Heat Shield (Upper) |
| 38 | Turbocharger Heat Shield (Upper) Bolt |
| 39 | Turbocharger |
| 40 | Exhaust Outlet Adapter Gasket |
| 41 | Exhaust Outlet Adapter |
| 42 | Heat Shield |
| 43 | Heat Shield Bolt |
| 44 | Exhaust Outlet Adapter Nut |
| 45 | Exhaust Outlet Adapter Stud |
| 46 | Turbocharger Bolt |
| 47 | Turbocharger Heat Shield - Lower |
| 48 | Intake Manifold |
| 49 | Exhaust Pipe Gasket |
| 50 | Exhaust Pipe - Right |
| 51 | Exhaust Pipe Gasket |
| 52 | Exhaust Pipe Bolt |
| 53 | Exhaust Outlet Bracket |
| 54 | Exhaust Pipe Bolt |
| 55 | Exhaust Pipe Gasket |
| 56 | Exhaust Pipe - Left |
| 57 | Heat Shield |
| 58 | Heat Shield Bolt |
| 59 | Exhaust Pipe Bolt |
| 60 | Exhaust Pipe Gasket |
| 61 | Exhaust Manifold Gasket |
| 62 | Exhaust Manifold |
| 63 | Exhaust Manifold Washer |
| 64 | Exhaust Manifold Beveled Washer |
| 65 | Exhaust Manifold Nut |
| 66 | Heat Shield |
| 67 | Heat Shield Bolt |
| 68 | Exhaust Manifold Bolt |
| 69 | Engine Assembly |
| 70 | Exhaust Manifold |
| 71 | Exhaust Manifold Bolt |
| 72 | Heat Shield |
| 73 | Heat Shield Bolt |
| 74 | Exhaust Manifold Nut |
| 75 | Exhaust Manifold Beveled Washer |
| 76 | Exhaust Manifold Washer |
| 77 | Exhaust Manifold Gasket |
| 78 | Intake Manifold |
| 79 | Turbocharger Oil Supply Line Eye Bolt |
| 80 | Turbocharger Oil Supply Line |
| 81 | Intake Manifold Bolt |
| 82 | Intake Manifold Bolt |
| 83 | Intake Manifold Stud |
| 84 | Intake Manifold Nut |
| Callout | Component Name |
|---|---|
| 1 | Coolant Temperature Sensor |
| 2 | Thermostat (Front) |
| 3 | Thermostat (Rear) |
| 4 | Heater Pipe Bolt |
| 5 | Heater Pipe |
| 6 | Thermostat Cover |
| 7 | Thermostat Cover Bolt |
| 8 | Water Outlet O-ring |
| 9 | Water Outlet Bolt |
| 10 | Water Outlet |
| 11 | Water Outlet Bolt |
| 12 | Oil Fill Cap |
| 13 | Oil Fill Tube Bolt |
| 14 | Oil Fill Tube |
| 15 | Oil Fill Tube O-ring |
| 16 | Engine Front Cover |
| 17 | Fuel Injection Pump Bolt |
| 18 | Engine Assembly |
| 19 | Fuel Injection Pump |
| 20 | Flywheel Housing Cover Bolt |
| 21 | Flywheel Housing Cover |
| 22 | Flywheel Housing Cover Gasket |
| 23 | Flywheel Housing O-ring |
| 24 | Flywheel Housing |
| 25 | Flywheel Housing Bolt |
| 26 | Dowel Pin |
| 27 | Crankshaft Rear Oil Seal |
| 28 | Engine Oil Cooler Adapter Gasket |
| 29 | Engine Oil Cooler Adapter Bolt |
| 30 | Engine Oil Cooler Adapter Bolt |
| 31 | Engine Oil Cooler Adapter |
| 32 | Engine Oil Cooler Adapter Gasket |
| 33 | Oil Pump Pipe and Screen Assembly Bolt |
| 34 | Oil Pump Pipe and Screen Assembly |
| 35 | Oil Pump Pipe and Screen Assembly Gasket |
| 36 | Oil Level Tube Bolt |
| 37 | Oil Level Tube |
| 38 | Oil Level Tube O-ring |
| 39 | Oil Level Sensor Bolt |
| 40 | Lower Oil Pan Stud |
| 41 | Oil Level Sensor |
| 42 | Retainer |
| 43 | Lower Oil Pan Bolt |
| 44 | Oil Drain Plug |
| 45 | Oil Drain Plug Gasket |
| 46 | Lower Oil Pan |
| 47 | Upper Oil Pan Bolt |
| 48 | Upper Oil Pan |
| 49 | Oil Pump |
| 50 | Oil Pump Bolt |
| 51 | Oil Pump Driven Gear |
| 52 | Oil Pump Driven Gear Nut |
| 53 | Engine Front Cover |
| 54 | Engine Front Cover Bolt |
| 55 | Oil Pressure Relief Valve |
| 56 | Thermostat Bypass Pipe Gasket |
| 57 | Thermostat Bypass Pipe Bolt |
| 58 | Thermostat Bypass Pipe |
| 59 | Thermostat Bypass Pipe O-ring |
| 60 | Thermostat Housing Bolt |
| 61 | Thermostat Housing Nut |
| 62 | Thermostat Housing Bolt |
| 63 | Thermostat Housing Nut |
| 64 | Thermostat Housing |
| 65 | Thermostat Housing Gasket |
| 66 | Thermostat Housing Stud |
| 67 | Camshaft Position Sensor O-ring |
| 68 | Camshaft Position Sensor |
| 69 | Camshaft Position Sensor Bolt |
| 70 | Crankshaft Position Sensor Bolt |
| 71 | Crankshaft Position Sensor |
| 72 | Crankshaft Position Sensor O-ring |
| Callout | Component Name |
|---|---|
| 1 | Fuel Injector Pipe (Cylinder 1) |
| 2 | Fuel Injector Pipe (Cylinder 3) |
| 3 | Fuel Injector Pipe (Cylinder 5) |
| 4 | Fuel Injector Pipe (Cylinder 7) |
| 5 | Right Fuel Rail |
| 6 | Fuel Rail Bolts |
| 7 | Left Fuel Rail |
| 8 | Fuel Injector Pipe (Cylinder 2) |
| 9 | Fuel Injector Pipe (Cylinder 4) |
| 10 | Fuel Injector Pipe (Cylinder 6) |
| 11 | Fuel Injector Pipe (Cylinder 8) |
| 12 | Glow Plug Controller Bracket |
| 13 | Glow Plug Controller (Federal Emissions) |
| 14 | Glow Plug Controller (CA Emissions) |
| 15 | Valve Rocker Arm Cover (Upper) |
| 16 | Valve Rocker Arm Cover (Upper) Bolt |
| 17 | Valve Rocker Arm Cover (Lower) Bolt |
| 18 | Valve Rocker Arm Cover (Lower) |
| 19 | Valve Rocker Arm cover Gasket |
| 20 | Engine Assembly |
| 21 | Valve Rocker Arm Cover Gasket |
| 22 | Valve Rocker Arm Cover (Lower) |
| 23 | Valve Rocker Arm Cover (Upper) Bolt |
| 24 | Valve Rocker Arm Cover (Upper) |
| Callout | Component Name |
|---|---|
| 1 | Cylinder Head Bolt |
| 2 | Cylinder Head |
| 3 | Cylinder Head Gasket |
| 4 | Valve Lifter |
| 5 | Valve Lifter Guide |
| 6 | Valve Lifter Guide Bracket |
| 7 | Cylinder Head Bolt |
| 8 | Cylinder Head |
| 9 | Cylinder Head Gasket |
| 10 | Dowel Pin |
| 11 | Engine Block |
| 12 | Engine Block Plug Gasket |
| 13 | Engine Block Plug |
| 14 | Crankshaft Bearing Cap M8 Bolt |
| 15 | Engine Block Plug |
| 16 | Connecting Rod Cap |
| 17 | Connecting Rod Bearing |
| 18 | Connecting Rod Bearing |
| 19 | Connecting Rod Bushing |
| 20 | Piston Pin |
| 21 | Piston Pin Retainer |
| 22 | Piston |
| 23 | Oil Control Ring |
| 24 | Compression Ring (2nd) |
| 25 | Compression Ring (1st) |
| 26 | Connecting Rod |
| 27 | Connecting Rod Bolt |
| 28 | Thrust Bearing |
| 29 | Crankshaft Bearing (Upper) |
| 30 | Thrust Bearing |
| 31 | Crankshaft Bearing (Lower) |
| 32 | Dowel Pin |
| 33 | Crankshaft Bearing Cap (5th) |
| 34 | Crankshaft Bearing Cap Bolt |
| 35 | Crankshaft Bearing Cap |
| 36 | Thrust Bearing |
| 37 | Crankshaft Position Sensor Exciter Ring Bolt |
| 38 | Crankshaft Position Sensor Exciter Ring |
| 39 | Crankshaft Position Sensor Exciter Ring Pin |
| 40 | Oil Pump Drive Gear |
| 41 | Crankshaft Gear |
| 42 | Crankshaft |
| 43 | Crankshaft Pin |
| 44 | Camshaft Position Sensor Exciter Ring Bolt |
| 45 | Camshaft Position Sensor Exciter Ring Pin |
| 46 | Camshaft Position Sensor Exciter Ring |
| 47 | Camshaft Gear Bolt |
| 48 | Camshaft Gear Washer |
| 49 | Camshaft Gear |
| 50 | Camshaft Thrust Plate Bolt |
| 51 | Camshaft Thrust Plate |
| 52 | Camshaft Pin |
| 53 | Camshaft |
| 54 | Engine Block Plug |
| 55 | Camshaft Bearing (Front) |
| 56 | Camshaft Bearing |
| 57 | Engine Block Plug |
| 58 | Engine Block Heater |
| Callout | Component Name |
|---|---|
| 1 | Cylinder Head |
| 2 | Rocker Arm Shaft Plug |
| 3 | Rocker Arm Shaft Mount |
| 4 | Rocker Arm Shaft Mount Bolt |
| 5 | Rocker Arm Shaft Assembly Lock Nut |
| 6 | Rocker Arm Shaft Assembly |
| 7 | Fuel Injector Harness |
| 8 | Fuel Injector Harness Bolt |
| 9 | Valve Bridge Pin |
| 10 | Valve Bridge |
| 11 | Valve Key |
| 12 | Valve Spring Seat (Upper) |
| 13 | Valve Spring |
| 14 | Valve Spring Seat (Lower) |
| 15 | Fuel Injector Gasket |
| 16 | Fuel Injector Seal (O-ring) |
| 17 | Fuel Injector |
| 18 | Fuel Injector Bracket Bolt |
| 19 | Fuel Injector Bracket |
| 20 | Fuel Return Pipe |
| 21 | Fuel Return Pipe Bolt |
| 22 | Fuel Return Pipe Gasket |
| 23 | Glow Plug |
| 24 | Glow Plug Connector-Model Dependent (Federal Emissions) |
| 25 | Glow Plug Connector-Model Dependent (CA Emissions) |
| 26 | Cylinder Head |
| 27 | Exhaust Valve |
| 28 | Pushrod |
| 29 | Valve Clearance Adjusting Screw |
| Callout | Component Name |
|---|---|
| 1 | Valve Rocker Arm Cover (Upper) |
| 2 | Valve Rocker Arm Cover (Upper) |
| 3 | Fuel Injector Seal |
| 4 | PCV Spring |
| 5 | PCV Diaphragm |
| 6 | PCV Cover |
| 7 | PCV Cover Bolt |
| Callout | Component Name |
|---|---|
| 1 | Oil Pump Cover |
| 2 | Oil Pump Cover Bolt |
| 3 | Oil Pump Drive Gear |
| 4 | Oil Pump Driven Gear |
| 5 | Oil Pump Housing |
| 6 | Oil Pump Gear |
| 7 | Oil Pump Gear Nut |
RENDER: 1.0x
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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.