GM Service Manual Online
For 1990-2009 cars only
Figure 1:

VCM


Object Number: 246882  Size: MF
(1)Vehicle Control Module (VCM)
(2)Right Front Fender
(3)VCM Connector (Blue)
(4)VCM Connector (Clear)
(5)VCM Connector Retainer
(6)VCM Connector (Black)
(7)VCM Connector (Red)
(8)VCM Retainer
Figure 2:

Underhood Fuse/Relay Center and Electronic Brake Control Module (EBCM)


Object Number: 235171  Size: SF
(1)Electronic Brake Control Module (EBCM)
(2)Underhood Fuse Block
(3)Left Front Fender
Figure 3:

Mass Air Flow (MAF) Sensor and Intake Air Temperature (IAT) Sensor


Object Number: 246881  Size: MF
(1)Intake Air Temperature (IAT) Sensor
(2)Air Outlet from Filter
(3)Distributor
(4)Knock Sensor (KS)
(5)Mass Air Flow (MAF) Sensor
Figure 4:

Crankshaft Position (CKP) Sensor


Object Number: 235188  Size: MF
(1)Crankshaft
(2)Front Engine Cover
(3)Crankshaft Position (CKP) Sensor
Figure 5:

Crankshaft Position (CKP) Reluctor Wheel


Object Number: 212697  Size: MF
(1)Crankshaft Position (CKP) Reluctor Wheel
(2)Crankshaft
(3)Engine Block
Figure 6:

Throttle Position (TP) Sensor, Idle Air Control (IAC) Valve, and Positive Crankcase Ventilation Valve (PCV)


Object Number: 212698  Size: MF
(1)Throttle Position (TP) Sensor
(2)Idle Air Control (IAC) Valve
(3)Ignition Coil
(4)Evaporative (EVAP) Canister Purge Valve
(5)Oil Pressure Switch
(6)Knock Sensor (KS)
(7)Fuel Pressure Connection Valve
(8)Positive Crankcase Ventilation Valve (PCV)
Figure 7:

MAP, EGR, Purge Solenoid, and Throttle Body


Object Number: 209643  Size: SF
(1)Throttle Body
(2)Exhaust Gas Recirculation (EGR) Valve
(3)Generator
(4)Evaporative Emission (EVAP) Canister Purge Valve
(5)Manifold Absolute Pressure (MAP) Sensor
Figure 8:

Left Side of the Engine Components (4.3L)


Object Number: 235186  Size: MF
(1)Bank 1 Cylinder Head
(2)Engine Coolant Temperature (ECT) Sensor
Figure 9:

Ignition Coil, Ignition Control (IC) Module, MAP, Throttle Body, and Evaporative (EVAP) Canister Purge Valve


Object Number: 212690  Size: LF
(1)EVAP Pipe
(2)Injector Assembly Electrical Connector
(3)Throttle Body
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Ignition Control (IC) Module
(6)Ignition Coil
(7)Evaporative (EVAP) Canister Purge Valve
Figure 10:

Camshaft Position (CMP) Sensor, Knock Sensor (KS), and Oil Pressure Switch


Object Number: 212680  Size: MF
(1)Camshaft Position (CMP) Sensor
(2)Oil Pressure Switch
(3)Knock Sensor (KS)
Figure 11:

Heated Oxygen Sensors


Object Number: 430019  Size: MF
(1)HO2S Bank 1 Sensor 3
(2)HO2S Bank 1 Sensor 1
(3)HO2S Bank 2 Sensor 1
Figure 12:

Air Injection Reactor (AIR) Pump, Shut Off Valve, and Solenoid Valve


Object Number: 573049  Size: MF
(1)Wiring Harness
(2)AIR Pump
(3)AIR Shut Off Valve
(4)AIR Solenoid Valve
(5)Radiator Support
Figure 13:

Automatic Transmission (4.3L w/2WD)


Object Number: 209622  Size: SF
(1)Vehicle Speed Sensor (VSS)
Figure 14:

Manual Transmission (4.3L w/2WD)


Object Number: 246886  Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 15:

Transfer Case (4.3L A/T w/4WD)


Object Number: 246883  Size: MF
(1)Vehicle Speed Sensor (VSS)
Figure 16:

Transfer Case (4.3L M/T w/4WD)


Object Number: 246884  Size: SF
(1)Manual Transmission
(2)Vehicle Speed Sensor (VSS)
(3)Transfer Case (4WD)
Figure 17:

VSS All Wheel Drive (AWD)


Object Number: 240975  Size: MF
(1)Automatic Transmission
(2)Transfer Case (All Wheel Drive)
(3)Vehicle Speed Sensor (VSS)
Figure 18:

EVAP Canister and EVAP Vent Valve (4DR Utility and Pickup)


Object Number: 235181  Size: LF
(1)Evaporative (EVAP) Vent Solenoid Valve
(2)Crossmember
(3)EVAP Canister
(4)Fuel Tank
(5)Fuel Tank Sender Assembly
Figure 19:

Fuel Tank Pressure Sensor and Fuel Level Sender Assembly


Object Number: 235167  Size: MF
(1)Fuel Tank
(2)Fuel Tank Pressure Sensor Connector
(3)Fuel Level Sender Connector
(4)Fuel Tank Sender Assembly