Powertrain Component Views

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Left Side of Engine Components (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Generator
2	Throttle Body
3	Transmission
4	Park/Neutral Position (PNP) Switch (M30)
5	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
6	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
7	Knock Sensor (KS) 1
8	Engine Coolant Temperature (ECT) Sensor
9	A/C Compressor Clutch (C67/CJ2)

Fig 2: Top of the Engine Components (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 2
2	Fuel Injector 4
3	Fuel Injector 6
4	Fuel Injector 5
5	Fuel Injector 3
6	Fuel Injector 1

Fig 3: Right Side of the Engine Components (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2	Throttle Body
3	Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor
4	X112
5	G103
6	Crankshaft Position (CKP) Sensor
7	Knock Sensor (KS) 2
8	Starter Motor
9	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
10	Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
11	Vehicle Speed Sensor (VSS) (M30/TZ0)

Fig 4: Rear of the Engine Components (4.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Central Sequential Fuel Injection (Central SFI) Module
2	Manifold Absolute Pressure (MAP) Sensor
3	G106
4	Engine Oil Pressure (EOP) Sensor
5	Ignition Control Module (ICM)
6	G107

Fig 5: Left Front Side of the Engine Components (4.8L/5.3L/6.0L/6.2L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Camshaft Position (CMP) Actuator Solenoid Valve (6.0L/6.2L)
2	Camshaft Position (CMP) Sensor
3	X112

Fig 6: Front of the Engine Components (4.8L/5.3L/6.0L/6.2L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Manifold Absolute Pressure (MAP) Sensor
3	Evaporative Emission (EVAP) Canister Purge Solenoid Valve
4	Knock Sensor (KS) 1
5	Engine Block Heater
6	Engine Coolant Temperature (ECT) Sensor
7	Camshaft Position (CMP) Sensor
8	Generator

Fig 7: Top of the Engine Components (4.8L/5.3L/6.0L/6.3L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 6
2	Ignition Coil 8
3	Fuel Injector 8
4	Fuel Injector 7
5	Ignition Coil 7
6	Fuel Injector 5
7	Ignition Coil 5
8	Ignition Coil 3
9	Fuel Injector 3
10	Ignition Coil 1
11	Fuel Injector 1
12	Manifold Absolute Pressure (MAP) Sensor
13	Fuel Injector 2
14	Ignition Coil 2
15	Ignition Coil 4
16	Fuel Injector 4
17	Ignition Coil 6

Fig 8: Right Side of the Engine (4.8L/5.3L/6.0L/6.2L)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Ignition Coil 8
2	Ignition Coil 6
3	Ignition Coil 4
4	Manifold Absolute Pressure (MAP) Sensor
5	Throttle Body
6	Ignition Coil 2
7	Knock Sensor (KS) 2
8	Crankshaft Position (CKP) Sensor
9	Engine Oil Level (EOL) Switch (Early Production)
10	Starter Motor
11	Valve Lifter Oil Manifold (VLOM) Assembly
12	Engine Oil Pressure (EOP) Sensor

Fig 9: Behind the Engine Components (4.8L/5.3L/6.0L/6.2L)

Courtesy of GENERAL MOTORS CORP.

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 10: Left Side of the Engine Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 2
2	Turbocharger Vane Position Sensor
3	Fuel Injector 4
4	Fuel Rail Pressure (FRP) Sensor
5	Fuel Injector 6
6	Fuel Injector 8
7	Glow Plug 8
8	Glow Plug 6
9	Engine Oil Pressure (EOP) Sensor
10	Engine Oil Level (EOL) Switch
11	Glow Plug 4
12	G106
13	G102
14	Glow Plug 2

Fig 11: Top of the Engine Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Turbocharger Vane Position Control Solenoid Valve
2	Glow Plug Control Module (GPCM)
3	Fuel Temperature Sensor
4	Intake Air Temperature (IAT) Sensor 2 Connector
5	X128
6	A/C Refrigerant Pressure Sensor (C67/CJ2)
7	Generator - Auxiliary (K76)
8	A/C Compressor Clutch (C67/CJ2)
9	Engine Coolant Temperature (ECT) Sensor
10	Camshaft Position (CMP) Sensor
11	X127
12	Generator
13	Manifold Absolute Pressure (MAP) Sensor
14	Intake Air Heater (IAH)
15	Intake Air Temperature (IAT) Sensor 2
16	Fuel Heater
17	A/C Low Pressure Switch (C67/CJ2)

Fig 12: Right Side of the Engine Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector 7
2	Fuel Injector 5
3	Fuel Injector 3
4	Exhaust Gas Recirculation (EGR) Valve
5	Fuel Injector 1
6	Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
7	Intake Air Valve
8	Crankshaft Position (CKP) Sensor
9	Glow Plug 1
10	G103
11	G105
12	Block Heater
13	Glow Plug 3
14	Glow Plug 5
15	Water In Fuel Sensor
16	Starter
17	Glow Plug 7

Fig 13: Rear of the Engine Components (Diesel)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	X300
2	G300
3	Automatic Transmission Turbine Speed Sensor (MW7)
4	Transmission
5	Vehicle Speed Sensor (VSS) (MW7)
6	X124 (PTO)
7	Power Take Off (PTO) Module (PTO)
8	X175 (MW7)

Fig 14: Transfer Case Components (NQG/NP2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case Shift Control Switch
2	Vehicle Speed Sensor (VSS)

Fig 15: Transfer Case Components (NQH/NQF)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case Encoder Motor
2	Vehicle Speed Sensor (VSS)
3	Rotational Position Sensor (NQH)

Fig 16: Left Side of the Transmission Components (M30/M70)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Automatic Transmission
2	Park/Neutral Position (PNP) Switch

Fig 17: Exploded Views Of Electronic Components Inside the Transmission (M30/M70)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
36	Vehicle Speed Sensor (VSS)
66	Torque Converter Clutch (TCC) Solenoid Valve
69	Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
250	Input Speed Sensor (ISS)
367a	1-2 Shift Solenoid (SS) Valve
367b	2-3 Shift Solenoid (SS) Valve
377	Pressure Control (PC) Solenoid Valve
394	3-2 Shift Solenoid (SS) Valve
396	Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Valve

Fig 18: Inside the Transmission Components (MYC/MYD)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Control Solenoid Valve Assembly
2	Input and Output Speed Sensor Assembly
3	Automatic Transmission Internal Mode Switch