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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 679 (ENGINE CONTROLS - 8.1L - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROLS COMPONENT VIEWS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Engine Controls Component Views

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Engine Controls Component Views
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Left Front of the Engine Compartment
GM1614586Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 1

Callout Component Name
1 Transmission Control Module (TCM)
2 Powertrain Control Module (PCM)
Fig 2: Air Induction Components
GM350034Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 2

Callout Component Name
1 Clamp
2 Air Duct
3 Clamp
4 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
5 Air Cleaner Assembly
6 Air Restriction Indicator
Fig 3: Left Side Of Engine Component View
GM1553128Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 3

Callout Component Name
1 Throttle Body
2 Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3 Ignition Coil 1
4 Fuel Injector 1
5 Ignition Coil 3
6 Fuel Injector 3
7 Manifold Absolute Pressure (MAP) Sensor
8 Fuel Injector 5
9 Ignition Coil 5
10 Fuel Injector 7
11 Ignition Coil 7
12 Knock Sensor (KS) - Bank 1
13 Camshaft Position (CMP) Sensor
Fig 4: Right Side Of Engine Component View
GM1553130Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 4

Callout Component Name
1 Crankshaft Position (CKP) Sensor
2 Engine Oil Pressure (EOP) Sensor
3 Fuel Injector 8
4 Manifold Absolute Pressure (MAP) Sensor
5 Ignition Coil 8
6 Ignition Coil 6
7 Fuel Injector 6
8 Fuel Injector 4
9 Ignition Coil 4
10 Fuel Injector 2
11 Throttle Body
12 Ignition Coil 2
13 Engine Coolant Temperature (ECT) Sensor
14 Knock Sensor (KS) - Bank 2
15 Starter Solenoid
16 Starter
Fig 5: Fuel Pump Relay - Secondary - W/Dual Tanks
GM750178Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 6

Callout Component Name
1 Fuel Pump Relay - Secondary
Fig 6: Throttle Actuator Control (TAC) Module
GM750162Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 6

Callout Component Name
1 Throttle Actuator Control (TAC) Module
2 Throttle Actuator Control (TAC) Connector
3 Fuse Block - Underhood
Fig 7: Accelerator Pedal Position (APP) Sensor Connector
GM751380Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 7

Callout Component Name
1 Accelerator Pedal Position (APP) Sensor Connector
2 Accelerator Pedal Position (APP) Sensor
Fig 8: Heated Oxygen Sensors (HO2S)
GM1614608Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 8

Callout Component Name
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
Fig 9: Fuel Pump And Sender Assembly Components
GM830794Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 9

Callout Component Name
1 Fuel Pump and Sender Assembly
2 Fuel Tank Pressure (FTP) Sensor
3 Fuel Level Sensor
Fig 10: Chassis Mounted Fuel/EVAP Controls - 10 Series
GM1606458Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 10

Callout Component Name
1 Fuel Pump and Sender Assembly
2 Evaporative Emissions (EVAP) Canister Vent Solenoid
Fig 11: Chassis Mounted Fuel/EVAP Controls - 20/30 Series
GM1606457Courtesy of GENERAL MOTORS CORP.
Callouts For Fig 11

Callout Component Name
1 Evaporative Emissions (EVAP) Canister Vent Solenoid
2 Fuel Pump and Sender Assembly - Primary
3 Fuel Pump and Sender Assembly - Secondary (Except NQZ)
RENDER: 1.0x

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  • • 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.