GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 Aztek - AWD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Engine Controls Component Views
Figure 1:

Behind Engine, Under Vehicle
Object Number: 305319 Size: LF
(1)Heat Shield
(2)Catalytic Converter
(3)Heated Oxygen Sensor (HO2S) 2
Figure 2:

Lower Front Of Engine (LA1)
Object Number: 1390334 Size: LF
(1)Crankshaft Position (CKP) Sensor A Connector and Bracket
(2)Knock Sensor (KS) Connector
(3)Engine Oil Pressure (EOP) Switch Connector
(4)Starter Solenoid
(5)Starter Motor
(6)Fusible Links (Starter)
(7)A/C Compressor Clutch Diode
Figure 3:

Rear of Engine (LA1)
Object Number: 619189 Size: LF
(1)Engine Oil Level Switch
(2)Vehicle Speed Sensor (VSS)
(3)Crankshaft Position (CKP) Sensor B
(3)Heated Oxygen Sensor (HO2S) Sensor 1
Figure 4:

Lower Front Of Engine (LA1)
Object Number: 1390334 Size: LF
(1)Crankshaft Position (CKP) Sensor A Connector and Bracket
(2)Knock Sensor (KS) Connector
(3)Engine Oil Pressure (EOP) Switch Connector
(4)Starter Solenoid
(5)Starter Motor
(6)Fusible Links (Starter)
(7)A/C Compressor Clutch Diode
Figure 5:

LH Side of Engine Compartment
Object Number: 761638 Size: LF
(1)Powertrain Control Module
Figure 6:

Fuel Tank
Object Number: 761614 Size: LF
(1)Fuel Pump and Sender Assembly
(2)Fuel Pump
(3)Canister Vent Solenoid
(4)EVAP Canister
(5)Fuel Level Sender
Figure 7:

Throttle Body Assembly
Object Number: 757599 Size: LF
(1)Idle Air Control (IAC) Valve
(2)Throttle Position (TP) Sensor
Figure 8:

Top of Engine (LA1)
Object Number: 741412 Size: SH
(1)Fuel Injector 2
(2)Fuel Injector 4
(3)Fuel Injector 6
(4)Fuel Rail
(5)Fuel Injector 5
(6)Fuel Injector 3
(7)Fuel Injector 1
Figure 9:

Left Rear of Engine (LA1)
Object Number: 531383 Size: LF
(1)Upper Intake Manifold
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Secondary Ignition (Spark Plug) Wires
(4)Ignition Control Module (ICM) and Ignition Coils
(5)Heated Oxygen Sensor (HO2S) Sensor 1
(6)Crankshaft Position (CKP) Sensor B
(7)Exhaust Gas Recirculation (EGR) Valve
(8)Throttle Position (TP) Sensor
(9)Fuel Feed and Return Pipes
(10)Throttle Body
(11)Idle Air Control (IAC) Valve
(12)Positive Crankcase Ventilation (PCV) Valve
(13)Evaporative Emission (EVAP) Canister Purge Solenoid
(14)Camshaft Position (CMP) Sensor Harness Connector
Figure 10:

Left Top of Engine (LA1)
Object Number: 741405 Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Mass Air Flow (MAF) Sensor
(3)Intake Air Temperature (IAT) Sensor
Figure 11:

Rear of Engine
Object Number: 760737 Size: LF
(1)Camshaft Position (CMP) Sensor
Figure 12:

Behind Engine, Under Vehicle
Object Number: 305319 Size: LF
(1)Heat Shield
(2)Catalytic Converter
(3)Heated Oxygen Sensor (HO2S) Sensor 2
Figure 13:

Left Front of Intake Manifold (LA1)
Object Number: 447391 Size: LF
(1)Fuel Injection Wiring Harness
(2)Engine Coolant Temperature (ECT) Sensor Connector
(3)Engine Coolant Temperature (ECT) Sensor
Figure 14:

LH Side of Engine (LA1)
Object Number: 760722 Size: LF
(1)Generator
(2)Ignition Control Module (ICM)
(3)Heated Oxygen Sensor (HO2S) 1
(4)Ignition Coils