Powertrain Component Views

Fig 1: Identifying 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 2: View Of Front Of Engine (LY7)

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
14	Engine Oil Pressure (EOP) Sensor

Fig 3: Identifying Engine Controls Components (LY7)

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 Level/Temperature Sensor
7	Engine Oil Pressure (EOP) Sensor

Fig 4: View Of Upper Left Side Of Engine (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 5: Engine Control Module (ECM) Component View (LY7)

Courtesy of GENERAL MOTORS CORP.

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

Fig 6: Camshaft Position (CMP) Sensors and Camshaft Actuator Solenoids Component View (LY7)

Courtesy of GENERAL MOTORS CORP.

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

Fig 7: Identifying Engine Controls Components (LY7)

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 Assembly
6	Knock Sensor (KS) 1
7	Crankshaft Position (CKP) Sensor
8	Engine Block Heater Assembly

Fig 8: Identifying Upper Rear Of Engine (LY7)

Courtesy of GENERAL MOTORS CORP.

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

Fig 9: View Of Front of Engine (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	Manifold Absolute Pressure (MAP) Sensor
7	Throttle Actuator Control (TAC) Module
8	Engine Coolant Heater
9	Knock Sensor (KS) 1
10	Engine Oil Level Switch
11	Camshaft Position (CMP) Sensor

Fig 10: View Of 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 11: View Of Left Top Side Of Engine (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Actuator Control (TAC) Module
2	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector

Fig 12: View Of 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 Actuator Control (TAC) Module
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 13: View Of Rear Of Engine (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil 7
2	Throttle Actuator Control (TAC) Module
3	Ignition Coil 8
4	Ignition Coil 6
5	Ignition Coil 4
6	Ignition Coil 2
7	Heated Oxygen Sensor (HO2S) 1
8	Knock Sensor (KS) 2
9	Crankshaft Position (CKP) Sensor
10	Engine Oil Level Switch
11	Valve Lifter Oil Manifold (VLOM) Assembly

Fig 14: Identifying Left Rear of Engine Compartment (LS4)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Brake Booster Vacuum Sensor
2	Brake Booster
3	Brake Fluid Level Switch

Fig 15: Upper Front Of The Engine Component Views (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Manifold Absolute Pressure (MAP) Sensor
2	Throttle Actuator Control (TAC) Module
3	Engine Coolant Temperature (ECT) Sensor
4	Fuel Injector 5
5	Fuel Injector 3
6	Fuel Injector 1

Fig 16: View Of Front Of Engine (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil Module
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 Actuator Control (TAC) Module
8	Engine Coolant Temperature (ECT) Sensor
9	Starter Solenoid
10	Starter
11	Engine Oil Level Switch
12	Knock Sensor (KS) 1

Fig 17: View Of Left Side Of Engine (L26)

Courtesy of GENERAL MOTORS CORP.

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

Fig 18: Upper Left Rear Of Engine Component View (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Exhaust Gas Recirculation (EGR) Valve
2	Heated Oxygen Sensor (HO2S) Sensor 1

Fig 19: View Of Secondary Air Injection Pump (L26)

Courtesy of GENERAL MOTORS CORP.

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

Fig 20: View Of Rear Of Engine (L26)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2	Throttle Actuator Control (TAC) Module
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) Sensor
10	Knock Sensor (KS) 2
11	Heated Oxygen Sensor (HO2S) 1

Fig 21: Rear Of The Engine Component Views (L26)

Courtesy of GENERAL MOTORS CORP.

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

Fig 22: 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) Sensor 1

Fig 23: 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) Control Solenoid Valve/Pressure Sensor, Bank 2 (NU6)

Fig 24: Internal Electronic Component Locations

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
10	Vehicle Speed Sensor (VSS) Assembly
315a	1-2, 3-4 Shift Solenoid (SS) Valve Assembly
315b	2-3 Shift Solenoid (SS) Valve Assembly
322	Pressure Control (PC) Solenoid Valve Assembly
334	Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly
391	Transmission Fluid Temperature (TFT) Sensor
395	Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly
440	Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly
811	Lever Assembly-Manual Shaft Detent with Shift Position Switch - Internal Mode Switch (IMS)