GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra - 4WD 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Powertrain Component Views
Figure 1:

Left Side of the Engine Components (4.3L)
Object Number: 1887842 Size: LF
(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)
Figure 2:

Top of the Engine Components (4.3L)
Object Number: 1934379 Size: LF
(1)Fuel Injector 2
(2)Fuel Injector 4
(3)Fuel Injector 6
(4)Fuel Injector 5
(5)Fuel Injector 3
(6)Fuel Injector 1
Figure 3:

Right Side of the Engine Components (4.3L)
Object Number: 1887852 Size: LF
(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)
Figure 4:

Rear of the Engine Components (4.3L)
Object Number: 1887857 Size: LF
(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
Figure 5:

Left Front Side of the Engine Components (4.8L/5.3L/6.0L/6.2L except LFA/HP2)
Object Number: 1933051 Size: LF
(1)Camshaft Position (CMP) Actuator Solenoid Valve (6.0L/6.2L)
(2)Camshaft Position (CMP) Sensor
(3)X112
Figure 6:

Front of the Engine Components (4.8L/5.3L/6.0L/6.2L except LFA/HP2)
Object Number: 1714191 Size: LF
(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
Figure 7:

Top of the Engine Components (4.8L/5.3L/6.0L/6.2L except LFA/HP2)
Object Number: 1714214 Size: LF
(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
Figure 8:

Right Side of the Engine Components (4.8L/5.3L/6.0L/6.2L except LFA/HP2)
Object Number: 2152879 Size: LF
(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)Starter Motor
(10)Valve Lifter Oil Manifold (VLOM) Assembly (5.3L/6.0L except LY6)
(11)Engine Oil Pressure (EOP) Sensor
Figure 9:

Behind the Engine Components (4.8L/5.3L/6.0L/6.2L except LFA/HP2)
Object Number: 1934357 Size: LF
(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
Figure 10:

Left Side of the Engine Components (LFA/HP2)
Object Number: 2164440 Size: LF
(1)Ignition Coil 1
(2)Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
(3)Fuel Injector 1
(4)Ignition Coil 3
(5)Fuel Injector 3
(6)Ignition Coil 5
(7)Fuel Injector 5
(8)Ignition Coil 7
(9)Fuel Injector 7
(10)Engine Oil Pressure (EOP) Sensor
(11)Knock Sensor (KS) 1
Figure 11:

Right Side of the Engine Components (LFA/HP2)
Object Number: 2164568 Size: LF
(1)Valve Lifter Oil Manifold (VLOM) Assembly
(2)Fuel Injector 8
(3)Fuel Injector 6
(4)Fuel Injector 4
(5)Fuel Injector 2
(6)Ignition Coil 2
(7)Ignition Coil 4
(8)Ignition Coil 6
(9)Knock Sensor (KS) 2
(10)Ignition Coil 8
(11)Crankshaft Position (CKP) Sensor
Figure 12:

Front of the Engine Components (LFA/HP2)
Object Number: 2164590 Size: LF
(1)Throttle Body
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Engine Coolant Temperature (ECT) Sensor
(4)Camshaft Position (CMP) Sensor
(5)A/C Compressor
Figure 13:

Rear of the Engine Components (LFA/HP2)
Object Number: 2160967 Size: LF
(1)Output Speed Sensor (OSS) (M99)
(2)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1
(3)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 2
(4)Transmission Power Inverter Module (3 Phase) Cable Cover
(5)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 2
(6)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1
Figure 14:

Left Side of the Engine Components (Diesel)
Object Number: 1870630 Size: LF
(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
Figure 15:

Top of the Engine Components (Diesel)
Object Number: 2020912 Size: LF
(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/YF2)
(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)
Figure 16:

Right Side of the Engine Components (Diesel)
Object Number: 1870626 Size: LF
(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 Motor
(17)Glow Plug 7
Figure 17:

Rear of the Engine Components (Diesel)
Object Number: 2056669 Size: LF
(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)
Figure 18:

Transfer Case Components (NQG)
Object Number: 1855930 Size: LF
(1)Transfer Case Shift Control Switch
(2) Vehicle Speed Sensor (VSS)
Figure 19:

Transfer Case Components (NQH/NQF)
Object Number: 1855931 Size: LF
(1)Transfer Case Encoder Motor
(2) Vehicle Speed Sensor (VSS)
(3) Transfer Case 2/4 Wheel Drive Actuator Position Sensor (NQH)
Figure 20:

Left Side of the Transmission Components (M30)
Object Number: 1283232 Size: MF
(1)Automatic Transmission
(2)Park/Neutral Position (PNP) Switch
Figure 21:

Inside the Transmission (M30)
Object Number: 1552905 Size: LF
(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
Figure 22:

Inside the Transmission Components (MYC/MYD)
Object Number: 1696407 Size: LF
(1)Control Solenoid Valve Assembly
(2)Input and Output Speed Sensor Assembly
(3)Automatic Transmission Internal Mode Switch