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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2044 (WIRING SYSTEMS AND POWER MANAGEMENT - MASTER ELECTRICAL COMPONENT LIST, FRONT OF VEHICLE, ENGINE COMPARTMENT AND POWERTRAIN COMPONENT VIEWS)POWERTRAIN COMPONENT VIEWS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Powertrain Component Views

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Powertrain Component Views
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Front Engine Compartment (LAT)
GM2001117Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuse Block - Auxiliary (HP7)
2 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3 Brake Booster Vacuum Sensor
4 Fuse Block - Underhood
5 Brake Fluid Level Switch
6 Brake Fluid Pressure Sensor (HP7)
7 Hill Hold Brake Delay Valve (HP7)
8 Electronic Brake Control Module (EBCM)
9 Engine Cooling Fan
10 Engine Cooling Fan Resistor
11 A/C Refrigerant Pressure Sensor
Fig 2: Engine - Front (LAT)
GM2001133Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 A/C Compressor Clutch
2 Starter Generator (HP7)
3 Throttle Body
4 Engine Control Module (ECM)
5 Transmission Control Module (TCM)
6 Starter Generator Control Module (SGCM) (HP7)
7 Automatic Transmission Auxiliary Fluid Pump (HP7)
8 Knock Sensor (KS) Connector
9 Knock Sensor (KS)
10 Engine Oil Pressure (EOP) Switch
11 Crankshaft Position (CKP) Sensor
12 Starter Motor
13 Starter Generator Control Module (SGCM) Coolant Pump (HP7)
Fig 3: Engine - Rear (LAT)
GM2001150Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Coolant Temperature (ECT) Sensor
2 Engine Block Heater (K05)
3 Automatic Transmission Output Shaft Speed (OSS) Sensor (ME7)
4 Heater Coolant Pump (HP7)
5 Park/Neutral Position (PNP) Switch (ME7)
Fig 4: Engine - Top (LAT)
GM2001154Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
2 Camshaft Position (CMP) Sensor - Intake
3 Fuel Injector 4
4 Fuel Injector 3
5 Fuel Injector 2
6 Fuel Injector 1
7 Camshaft Position (CMP) Actuator Solenoid Valve - Intake
8 Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust
9 Ignition Coil 1
10 Ignition Coil 2
11 Ignition Coil 3
12 Ignition Coil 4
13 Camshaft Position (CMP) Sensor - Exhaust
Fig 5: Engine-Front View (LCS)
GM2084250Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2 Fuse Block - Underhood
3 Fuse Block - Auxiliary (HP5)
4 Automatic Transmission Auxiliary Fluid Pump Control Module (HP5)
5 High Pressure Fuel Pump Connector
6 Automatic Transmission Input Shaft Speed (ISS) Sensor
7 Automatic Transmission - 2MT70 (MK3)
8 A/C Refrigerant Pressure Sensor
9 Drive Motor Generator Power Inverter Module Temperature Sensor (HP5)
10 Knock Sensor (KS) Bank 2
11 Electric A/C Compressor (HP5)
12 Engine Oil Pressure (EOP) Sensor
13 Drive Motor Generator Power Inverter Module Coolant Pump 1 (HP5)
14 Engine Coolant Temperature (ECT) Sensor
15 Drive Motor Generator Power Inverter Module Coolant Pump 2 (HP5)
Fig 6: Engine-Left Rear (LCS)
GM2084290Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Drive Motor Generator Power Inverter Module (HP5)
2 Heater Coolant Pump (HP5)
3 Resolver Motor-B X1 (HP5)
4 Resolver Motor-B X2 (HP5)
5 Automatic Transmission Auxiliary Fluid Pump Connector
6 X176
7 Accessory DC Power Control Module (HP5)
Fig 7: Engine-Right Rear (LCS)
GM2084258Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Camshaft Position (CMP) Sensor - Bank 1 Exhaust
2 Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
3 Control Solenoid Valve Assembly
4 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
5 Camshaft Position (CMP) Sensor - Bank 1 Intake
6 Camshaft Position (CMP) Sensor - Bank 2 Intake
7 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
8 Camshaft Position (CMP) Sensor - Bank 2 Exhaust
9 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
10 Engine Control Module (ECM)
11 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust
12 Knock Sensor (KS) Bank 1
13 Crankshaft Position (CKP) Sensor
Fig 8: Engine-Top View (LCS)
GM2084272Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Drive Motor Battery Cable Terminal Extension Cover (HP5)
2 Ignition Coil 6
3 Ignition Coil 4
4 Ignition Coil 2
5 Fuel Injector 6
6 Fuel Injector 4
7 Fuel Injector 2
8 Fuel Injector 1
9 Fuel Injector 3
10 Ignition Coil 1
11 Ignition Coil 3
12 Ignition Coil 5
13 Fuel Injector 5
Fig 9: Front Of The Engine (LE5)
GM1906550Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Throttle Body
2 Crankshaft Position (CKP) Sensor
3 Starter Motor
4 Engine Oil Pressure (EOP) Switch
5 Knock Sensor (KS)
6 A/C Compressor Clutch
7 A/C Refrigerant Pressure Sensor
8 Generator
Fig 10: Rear Of The Engine (LE5)
GM1906561Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Block Heater Connector (K05)
2 Heated Oxygen Sensor (HO2S) 2
3 Heated Oxygen Sensor (HO2S) 1
4 Engine Coolant Temperature (ECT) Sensor
5 Camshaft Position (CMP) Sensor - Intake
Fig 11: Top Of The Engine (LE5)
GM1993771Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2 Camshaft Position (CMP) Actuator Solenoid Valve- Intake
3 Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust
4 Ignition Coil 1
5 Ignition Coil 2
6 Ignition Coil 3
7 Ignition Coil 4
8 Throttle Body
9 Fuel Injector 4
10 Fuel Injector 3
11 Fuel Injector 2
12 Fuel Injector 1
13 Manifold Absolute Pressure (MAP) Sensor
14 X110
Fig 12: Top Of The Engine (LE5)
GM1906555Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
2 Camshaft Position (CMP) Sensor Exhaust
3 Manifold Absolute Pressure (MAP) Sensor
4 Camshaft Position (CMP) Actuator Solenoid Valve - Intake
5 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
6 Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust
Fig 13: Front Of The Engine (LY7)
GM1906530Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Manifold Absolute Pressure (MAP) Sensor
2 Control Solenoid Valve Assembly (MH2/MH4)
3 Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
4 Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
5 Knock Sensor (KS) Bank 1
6 Engine Oil Pressure (EOP) Switch
7 A/C Compressor Clutch
8 A/C Refrigerant Pressure Sensor
9 Generator
10 Engine Coolant Temperature (ECT) Sensor
Fig 14: Rear Of The Engine (LY7)
GM1906541Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
2 Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
3 Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
4 Knock Sensor (KS) Bank 2
5 Crankshaft Position (CKP) Sensor
6 Engine Block Heater Connector (K05)
Fig 15: Right Side Of The Engine (LY7)
GM1906534Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Throttle Body
2 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3 Camshaft Position (CMP) Sensor - Bank 2 Intake
4 Camshaft Position (CMP) Sensor - Bank 2 Exhaust
5 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake
6 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
7 Camshaft Position (CMP) Sensor - Bank 1 Intake
8 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
9 Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust
10 Camshaft Position (CMP) Sensor - Bank 1 Exhaust
Fig 16: Top Of The Engine (LY7)
GM1906539Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Injector 6
2 Ignition Coil 6
3 Fuel Injector 4
4 Ignition Coil 4
5 Ignition Coil 2
6 Fuel Injector 2
7 Fuel Injector 1
8 Ignition Coil 1
9 Fuel Injector 3
10 Ignition Coil 3
11 Ignition Coil 5
12 Fuel Injector 5
Fig 17: Front Of The Engine (LZ4)
GM1906522Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
2 Engine Coolant Temperature Sensor
3 Control Solenoid Valve Assembly (MH2/MH4)
4 Engine Harness
5 Starter
6 Knock Sensor (KS) Bank 2
7 Engine Oil Pressure (EOP) Switch
8 Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
9 A/C Compressor Clutch
10 A/C Refrigerant Pressure Sensor
Fig 18: Rear Of The Engine (LZ4)
GM1906528Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Knock Sensor (KS) Bank 1
2 Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
3 Camshaft Position (CMP) Actuator Solenoid Valve
4 Engine Block Heater Connector (K05)
5 Crankshaft Position (CKP) Sensor
6 Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Fig 19: Top Of The Engine (LZ4)
GM1906525Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Generator
2 Ignition Control Module (ICM)
3 Manifold Absolute Pressure (MAP) Sensor
4 Throttle Body
5 Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
6 Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Fig 20: Top View Of The Engine (LZ4)
GM1994030Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Injector 6
2 Fuel Injector 5
3 Fuel Injector 4
4 Camshaft Position (CMP) Sensor
5 Fuel Injector 1
6 Fuel Injector 2
7 Fuel Injector 3
Fig 21: Automatic Transmission Auxiliary Fluid Pump (HP7)
GM2174696Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 4-3 Downshift On/Off Solenoid (HP7)
2 Automatic Transmission Auxiliary Fluid Pump (HP7)
Fig 22: LAT Engine With ME7 Transmission
GM1906569Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Automatic Transmission Auxiliary Fluid Pump (HP7)
2 X112
3 Automatic Transmission Output Shaft Speed (OSS) Sensor
4 Park/Neutral Position (PNP) Switch
Fig 23: Transmission Components (MH2/MH4)
GM2008672Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Automatic Transmission Input Shaft Speed (ISS) Sensor
2 Control Solenoid Valve Assembly X1
3 Automatic Transmission Shift Lever
4 Automatic Transmission Output Shaft Speed (OSS) Sensor
Fig 24: Identifying Electronic Components (ME7/MN5)
GM1982293Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
2 1-2 Shift Solenoid (SS) Valve (ME7/MN5)
3 2-3 Shift Solenoid (SS) Valve (ME7/MN5)
4 Automatic Transmission Output Shaft Speed (OSS) Sensor
5 Automatic Transmission Input Shaft Speed (ISS) Sensor
6 Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Valve
7 Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Valve
Fig 25: Engine (LE5) and Transmission (MN5)
GM2006086Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine ( LE5)
2 Heated Oxygen Sensor (HO2S) 1 ( LAT/LE5)
3 Automatic Transmission Output Shaft Speed (OSS) Sensor
4 Heated Oxygen Sensor (HO2S) 2 (LAT/LE5)
5 Park/Neutral Position (PNP) Switch (ME7/MN5)
6 Automatic Transmission (MN5)
7 X112
Fig 26: Engine (LY7) with Transmission (MH2/MH4)
GM2008697Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine (LY7)
2 Transmission (MH2/MH4)
3 Control Solenoid Valve Assembly X1
Fig 27: LZ4 Engine with MH4 Transmission
GM1906564Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Control Solenoid Valve Assembly
2 Transfer Case
RENDER: 1.0x

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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.