Powertrain Component Views

Fig 1: Engine Controls Components (Front of Engine - L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Control Module (ICM)
2	Manifold Absolute Pressure (MAP) Sensor
3	Fuel Injector 1
4	Fuel Injector 3
5	Fuel Injector 5
6	Exhaust Gas Recirculation (EGR) Valve
7	Throttle Body
8	Engine Coolant Temperature (ECT) Sensor
9	Starter Solenoid
10	Starter Motor
11	Engine Oil Level (EOL) Switch
12	Knock Sensor (KS) 1

Fig 2: Right Side of Engine-Engine Front (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Exhaust Gas Recirculation (EGR) Valve
2	Manifold Absolute Pressure (MAP) Sensor
3	Throttle Body
4	Ignition Control Module (ICM)
5	Crankshaft Position (CKP) Sensor
6	Engine Oil Pressure (EOP) Switch
7	Camshaft Position (CMP) Sensor
8	Heated Oxygen Sensor (HO2S) 1

Fig 3: Bottom Left of Engine Components (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Valve Cover
2	Secondary Air Injection (AIR) Pump (NU6)
3	Starter Motor

Fig 4: Rear of the Engine (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2	Throttle Body
3	Exhaust Gas Recirculation (EGR) Valve
4	Fuel Injector 6
5	Fuel Injector 4
6	Fuel Injector 2
7	Manifold Absolute Pressure (MAP) Sensor
8	Camshaft Position (CMP) Sensor
9	Engine Oil Pressure (EOP) Switch
10	Knock Sensor (KS) 2
11	Heated Oxygen Sensor (HO2S) 1

Fig 5: Left Rear of the Engine Components (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2	Exhaust Gas Recirculation (EGR) Valve
3	Evaporative Emission (EVAP) Canister Purge Solenoid Valve

Fig 6: Top Rear of Engine Components (L26) 1 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Exhaust Gas Recirculation (EGR) Valve
2	Fuel Injector 6
3	Fuel Injector 4
4	Fuel Injector 2
5	Generator
6	Heated Oxygen Sensor (HO2S) 1

Fig 7: Top Rear of Engine Components (L26) 2 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Exhaust Gas Recirculation (EGR) Valve
2	Intake Manifold
3	Valve Cover
4	Secondary Air Injection (AIR) Shutoff valve (NU6)

Fig 8: Front of Engine Components (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine Coolant Temperature (ECT) Sensor
2	Ignition Coil 1
3	Ignition Coil 3
4	Ignition Coil 5
5	Ignition Coil 7
6	Throttle Body
7	Engine Oil Pressure (EOP) Sensor
8	Valve Lifter oil Manifold (VLOM) Assembly
9	Coolant Heater (K05)
10	Knock Sensor (KS) 1

Fig 9: Left Front of Engine Compartment (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transmission Control Module (TCM)
2	Air Cleaner Housing
3	Radiator Core Support
4	Engine Control Module (ECM)

Fig 10: Left Top Side Of Engine (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector

Fig 11: Top of Engine (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil 8
2	Fuel Injector 8
3	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
4	Manifold Absolute Pressure (MAP) Sensor
5	Throttle Body
6	Engine Oil Pressure (EOP) Sensor
7	Fuel Injector 7
8	Ignition Coil 7
9	Fuel Injector 5
10	Ignition Coil 5
11	Fuel Injector 3
12	Ignition Coil 3
13	Fuel Injector 1
14	Ignition Coil 1
15	Fuel Injector 2
16	Ignition Coil 2
17	Fuel Injector 4
18	Ignition Coil 4
19	Fuel Injector 6
20	Ignition Coil 6

Fig 12: Rear of Engine Components (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3	Generator
4	Camshaft Position (CMP) Sensor
5	Crankshaft Position (CKP) Sensor
6	Knock Sensor (KS) 2
7	Ignition Coil 2
8	Ignition Coil 4
9	Ignition Coil 6
10	Ignition Coil 8
11	Manifold Absolute Pressure (MAP) Sensor

Fig 13: Fuel Injectors (LY7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Valve Cover - Right
2	Fuel Injector 5
3	Intake Manifold
4	Fuel Injector 6
5	Fuel Injector 4
6	Fuel Injector 2
7	Valve Cover - Left
8	Fuel Injector 1
9	Fuel Injector 3

Fig 14: Front of the Engine Components (LY7) 1 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X107
2	J121
3	J120
4	J110
5	J119
6	X109
7	J103
8	J131
9	J133
10	G131
11	Engine Coolant Temperature (ECT) Sensor
12	Starter Solenoid
13	Starter Motor
14	Engine Oil Pressure (EOP) Sensor

Fig 15: Front of the Engine Components (LY7) 2 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil 2
2	Ignition Coil 4
3	Ignition Coil 6
4	Engine Coolant Temperature (ECT) Sensor
5	Knock Sensor (KS) 2
6	Engine Oil Pressure (EOP) Sensor

Fig 16: Upper Left Side of the Engine Components (LY7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Air Cleaner Assembly
2	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3	Engine Block

Fig 17: Top Right of the Engine Components (LY7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine Control Module (ECM) X1
2	Engine Control Module (ECM)
3	Engine Control Module (ECM) X2

Fig 18: Side of the Engine Components (LY7) 1 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Camshaft Position (CMP) Sensor - Bank 1 Exhaust
2	Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust Bank 1
3	Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
4	Camshaft Position (CMP) Sensor - Bank 1 Intake
5	Camshaft Position (CMP) Sensor - Bank 2 Intake
6	Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake
7	Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
8	Camshaft Position (CMP) Sensor - Bank 2 Exhaust

Fig 19: Side of the Engine Components (LY7) 2 of 2

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil 5
2	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3	Ignition Coil 3
4	Ignition Coil 1
5	Throttle Body
6	Knock Sensor (KS) 1
7	Crankshaft Position (CKP) Sensor
8	Coolant Heater (K05)

Fig 20: Rear of the Engine Components (LY7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Heated Oxygen Sensor (HO2S) 1
2	Engine Valve Cover
3	Exhaust Manifold

Fig 21: Right Front Frame and Underbody (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Catalytic Converter
2	Heated Oxygen Sensor (HO2S) 2

Fig 22: Under Engine Components (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Heated Oxygen Sensor (HO2S) 2

Fig 23: Locating Transaxle Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Pressure Control (PC) Solenoid Valve
2	1-2 Shift Solenoid (SS) Valve
3	Automatic Transmission Input Shaft Speed (ISS) Sensor
4	2-3 Shift Solenoid (SS) Valve
5	Automatic Transmission Internal Mode Switch (IMS)
6	Vehicle Speed Sensor (VSS)
7	Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
8	Automatic Transmission Fluid Temperature (TFT)Sensor
9	Torque Converter Clutch (TCC) Solenoid Valve