GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Savana 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Powertrain Component Views
Figure 1:

Front of the Engine (4.3L)
Object Number: 2085391 Size: MF
(1)Generator
(2)A/C Compressor Clutch Connector (C60)
(3)Crankshaft Position (CKP) Sensor
Figure 2:

Right Side of the Engine (4.3L)
Object Number: 2009664 Size: LF
(1)Central Sequential Fuel Injection (Central SFI) Connector
(2)Manifold Absolute Pressure (MAP) Sensor Connector
(3)Ignition Control Module (ICM) Connector
(4)Generator Connector
(5)J102
(6)Evaporative Emission (EVAP) Canister Purge Solenoid Valve Connector
Figure 3:

Left Rear of the Engine (4.3L)
Object Number: 2085426 Size: MF
(1)Engine Coolant Temperature (ECT) Sensor
Figure 4:

Rear of the Engine (4.3L/5.3L)
Object Number: 1226739 Size: MF
(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
(5)Park/Neutral Position (PNP) Switch
Figure 5:

Oxygen Sensors (4.8L/6.0L)
Object Number: 882716 Size: LF
(1)X128 (Cutaway)
(2)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 1 Connector
(3)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 2 Connector
(4)Heated Oxygen Sensor (HO2S) - Bank 2 Sensor 2 Connector
(5)Heated Oxygen Sensor (HO2S) - Bank 1 Sensor 1 Connector
Figure 6:

Lower Right of Engine (4.3L)
Object Number: 2041689 Size: SH
(1)Knock Sensor (KS) 2
Figure 7:

Front of the Engine Components (4.8L/5.3L/6.0L)
Object Number: 2038629 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 Coolant Temperature (ECT) Sensor
(6)Camshaft Position (CMP) Sensor
(7)Generator
Figure 8:

Left Front Side of the Engine Components (4.8L/5.3L/6.0L)
Object Number: 2038655 Size: LF
(1)Camshaft Position (CMP) Actuator Solenoid Valve (6.0L)
(2)Camshaft Position (CMP) Sensor
Figure 9:

Right Side of the Engine Components (4.8L/5.3L/6.0L)
Object Number: 2038657 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)Engine Oil Level (EOL) Switch
(10)Starter
(11)Engine Oil Pressure (EOP) Sensor
Figure 10:

Right Side of the Engine (4.8L/ 5.3L/ 6.0L)
Object Number: 2009670 Size: MF
(1)Crankshaft Position (CKP) Sensor Connector
(2)A/C Compressor Clutch Connector (C60)
(3)Engine Oil Level (EOL) Switch Connector
(4)Starter Motor
Figure 11:

Upper Left Side of the Engine (4.8L/ 5.3L/ 6.0L)
Object Number: 2009671 Size: LF
(1)Fuel Injector 1 Connector
(2)Fuel Injector 3 Connector
(3)Fuel Injector 5 Connector
(4)J101
(5)J102
(6)Fuel Injector 7 Connector
(7)Ignition Coil 7 Connector
(8)Ignition Coil 5 Connector
(9)X126
(10)Ignition Coil 3 Connector
(11)Engine Coolant Temperature (ECT) Sensor Connector
(12)Ignition Coil 1 Connector
Figure 12:

Upper Right Side of the Engine (4.8L/ 5.3L/ 6.0L)
Object Number: 1226716 Size: LF
(1)Fuel Injector 8 Connector
(2)Fuel Injector 6 Connector
(3)Fuel Injector 4 Connector
(4)Fuel Injector 2 Connector
(5)Ignition Coil 2 Connector
(6)Ignition Coil 4 Connector
(7)Ignition Coil 6 Connector
(8)X127
(9)Ignition Coil 8 Connector
Figure 13:

Top of the Engine (4.8L/5.3L/6.0L)
Object Number: 2009673 Size: MF
(1)Manifold Absolute Pressure (MAP) Sensor Connector
(2)J102
(3)J101
(4)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(5)Throttle Body
Figure 14:

Lower Right of Engine (4.8L/5.3L/6.0L)
Object Number: 2041693 Size: SH
(1)Knock Sensor (KS) 2
Figure 15:

Engine - Right Side (6.6L)
Object Number: 1831325 Size: LF
(1)Fuel Injector 7
(2)X112
(3)Fuel Injector 5
(4)Fuel Injector 3
(5)Exhaust Gas Recirculation (EGR) Valve
(6)Fuel Injector 1
(7)Generator
(8)Intake Air Valve
(9)X108
(10)Camshaft Position (CMP) Sensor
(11)Crankshaft Position (CKP) Sensor
(12)G108
(13)G104
(14)Starter Motor
(15)Glow Plug 1
(16)Glow Plug 3
(17)Glow Plug 5
(18)Glow Plug 7
Figure 16:

Left Side of the Engine (6.6L)
Object Number: 1831331 Size: LF
(1)X110
(2)X111
(3)Intake Air Temperature (IAT) Sensor
(4)Fuel Injector 4
(5)Glow Plug Control Module (GPCM)
(6)Fuel Injector 6
(7)Fuel Injector 8
(8)Glow Plug 8
(9)Glow Plug 6
(10)Engine Oil Level (EOL) Switch
(11)Engine Oil Pressure (EOP) Sensor
(12)G107
(13)G102
(14)G103
(15)Glow Plug 4
(16)Glow Plug 2
(17)Fuel Injector 2
(18)X101
(19)A/C Compressor
Figure 17:

Top of Engine (6.6L)
Object Number: 2006107 Size: LF
(1)X111
(2)Engine Coolant Temperature (ECT) Sensor
(3)Fuel Pressure Regulator
Figure 18:

Upper Engine (6.6L)
Object Number: 1831320 Size: LF
(1)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(2)Throttle Body
(3)Intake Air Valve
(4)Intake Air Heater (IAH)
(5)Manifold Absolute Pressure (MAP) Sensor
(6)Turbocharger
(7)Turbocharger Vane Position Control Solenoid Valve
(8)Turbocharger Vane Position Sensor
(9)Fuel Rail Temperature (FRT) Sensor
(10)X111
(11)X110
Figure 19:

Top Rear of Engine (6.6L)
Object Number: 1842559 Size: LF
(1)Fuel Rail Pressure (FRP) Sensor
(2)X112
Figure 20:

Automatic Transmission Internal Electronic Components (4L60-E)
Object Number: 1749030 Size: LF
(36)Automatic Transmission Output Shaft Speed (OSS) Sensor
(66)Torque Converter Clutch (TCC) Solenoid Valve
(69)Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
(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 21:

Automatic Transmission Internal Electronic Components (4L80-E)
Object Number: 1236985 Size: LF
(22a)Automatic Transmission Input Shaft Speed (ISS) Sensor
(22b)Automatic Transmission Output Shaft Speed (OSS) Sensor
(34)Automatic Transmission Fluid Temperature (TFT) Sensor
(40)Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
(311)2-3 Shift Solenoid (SS) Valve
(313)1-2 Shift Solenoid (SS) Valve
(320)Pressure Control (PC) Solenoid Valve
(323)Torque Converter Clutch (TCC) Pulse Width Modulation (PWM) Solenoid Valve