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

4.3L Engine, Left Side


Object Number: 395707  Size: MF
(1)Throttle Position (TP) Sensor)
(2)Fuel Injectors (number 1- number 6)
(3)Idle Air Control Valve
(4)Evaporative Emission (EVAP) Canister Vacuum Switch
(5)Engine Coolant Temperature Gauge Sensor
(6)A/C Compressor Clutch
(7)Exhaust Gas Reduction Valve (EGR) Valve
Figure 2:

Engine, Upper RH Side (5.0L, 5.7L)


Object Number: 375573  Size: MF
(1)C112
(2)A/C Compressor Clutch
(3)Exhaust Gas Recirculation (EGR) Valve
(4)Engine Coolant Temperature (ECT) Sensor
(5)Evaporative Emission (EVAP) Canister Vacuum Switch
(6)C110
(7)Ignition Control Module
(8)Ignition Coil
(9)Fuel Injectors (1-8)
(10)Manifold Absolute Pressure (MAP) Sensor
Figure 3:

6.5L Engine, Left Side


Object Number: 327362  Size: MF
(1)Wastegate Solenoid
(2)Engine Coolant Temperature gauge Sensor
(3)A/C Compressor High Pressure Cutoff Switch
(4)Engine Coolant Temperature Gauge Sensor
Figure 4:

7.4L Engine Harness, Right Side


Object Number: 323394  Size: MF
(1)G102
(2)G101
Figure 5:

7.4L Engine, Left Side


Object Number: 327361  Size: MF
(1)Evaporative Emission (EVAP) Canister Purge Valve
(2)Evaporative Emission (EVAP) Canister Vacuum Switch
(3)Exhaust Gas Recirculation (EGR) Valve
(4)Engine Coolant Temperature Gauge Sensor
(5)Knock Sensor, Left
(6)A/C Compressor High Pressure Cutoff Switch
(7)A/C Compressor
Figure 6:

Engine, LH Side (5.0L, 5.7L)


Object Number: 375580  Size: MF
(1)Idle Air Control Valve
(2)Throttle Position (TP) Sensor
(3)Engine Coolant Temperature Gauge Sensor
(4)A/C Compressor High Pressure Cutoff Switch (All Engines)
(5)Generator
Figure 7:

A/C Compressor Low Pressure Cutout Switch


Object Number: 375615  Size: MF
(1)A/C Compressor Low Pressure Cutout Switch
Figure 8:

Defroster Valve Actuator


Object Number: 375646  Size: MF
(1)Air Inlet Valve Actuator
(2)Defroster Valve Actuator
Figure 9:

Auxiliary Heater and A/C Wiring


Object Number: 375647  Size: MF
(1)Heater and A/C Control Logic Module
(2)Front Auxiliary HVAC Control Module
(3)Rear Auxiliary HVAC Control Module
Figure 10:

Instrument Panel Wiring, HVAC


Object Number: 375645  Size: MF
(1)Inner and Outer Mode Valve Actuator
(2)Temperature Valve Actuator Motor