Powertrain Component Views

Fig 1: Automatic Transmission Components (MH1)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Torque Converter Clutch (TCC) Pulse Width Modulated (PWM) Solenoid Valve
2	Pressure Control Solenoid (PCS) Valve
3	Automatic Transmission Input Shaft Speed (ISS) Sensor
4	Automatic Transmission Output Shaft Speed (OSS) Sensor
5	1-2 and 2-3 Shift Solenoid (1-2 SS) (2-3 SS) Valves
6	Automatic Transmission Internal Mode Switch (IMS)
7	Automatic Transmission Fluid Temperature (TFT) Sensor

Fig 2: Left Front Corner Of Engine Compartment Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2	Engine Control Module (ECM) (in the Air Cleaner Assembly)

Fig 3: Left Front Of Engine Compartment Components (L37 or NU6)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Secondary Air Injection (AIR) Pump

Fig 4: Left Front Of Engine Compartment Components (LZ9 or LGD)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

Fig 5: Front Of Engine Components (L37 1 of 2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Valve Cover
2	Ignition Coil/Module 2
3	Ignition Coil/Module 4
4	Ignition Coil/Module 6
5	Ignition Coil/Module 8
6	Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1
7	Engine Oil Pressure (EOP) Switch

Fig 6: Front Of Engine Components (L37 2 of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 7: Front Of Engine Components (LZ9 Or LGD)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Intake Manifold Tuning (IMT) Valve Solenoid
2	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3	Throttle Body
4	Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1
5	Knock Sensor (KS) 2
6	Starter Solenoid
7	Starter Motor
8	Engine Oil Pressure (EOP) Sensor
9	Camshaft Position (CMP) Actuator Solenoid Valve
10	Camshaft Position (CMP) Sensor

Fig 8: Lower Left Front Of Engine Components (LZ9 Or LGD)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine Oil Pressure (EOP) Sensor
2	Starter Motor
3	Starter Solenoid
4	Knock Sensor (KS) 2

Fig 9: Left Rear Of Engine Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2	Exhaust Gas Recirculation (EGR) Valve

Fig 10: Left Side & Rear Of Engine Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Manifold Absolute Pressure (MAP) Sensor
3	Valve Cover
4	Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1
5	Engine Coolant Temperature (ECT) Sensor
6	Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1

Fig 11: Left Side & Rear Of Engine Components (LZ9 Or LGD)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Manifold Absolute Pressure (MAP) Sensor
3	Ignition Control Module (ICM)
4	Heated Oxygen Sensor (HO2S)
5	Knock Sensor (KS) 1
6	Block Heater
7	Crankshaft Position (CKP) Sensor
8	Engine Oil Level Sensor
9	Starter Motor
10	Engine Coolant Temperature (ECT) Sensor

Fig 12: Top Of Engine Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Starter Motor
2	Manifold Absolute Pressure (MAP) Sensor
3	Throttle Body
4	Fuel Injector 8
5	Ignition Coil/Module 8
6	Fuel Injector 6
7	Ignition Coil/Module 6
8	Knock Sensor (KS) 2
9	Fuel Injector 4
10	Ignition Coil/Module 4
11	Ignition Coil/Module 2
12	Fuel Injector 2
13	Crankshaft Position (CKP) Sensor
14	Knock Sensor (KS) 1
15	Camshaft Position (CMP) Sensor
16	Ignition Coil/Module 1
17	Ignition Coil/Module 3
18	Fuel Injector 1
19	Ignition Coil/Module 5
20	Fuel Injector 3
21	Ignition Coil/Module 7
22	Fuel Injector 5
23	Fuel Injector 7

Fig 13: Top Of Engine Components (LZ9 Or LGD)

Courtesy of GENERAL MOTORS CORP.

Fig 14: Top Rear Of Engine Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Secondary Air Injection (AIR) Check Valve

Fig 15: Under Front Center Of Vehicle Components (L37)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Heated Oxygen Sensor (HO2S) 2