Engine Controls Component Views

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Full Engine View Left Side Component Views

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Idle Air Control (IAC) Motor
2	Evaporative Emissions (EVAP) Canister Purge Solenoid
3	Fuel Injector 1
4	Fuel Injector 3
5	Fuel Injector 5
6	Manifold Absolute Pressure (MAP) Sensor
7	Fuel Injector 7
8	Positive Crankcase Ventilation (PCV) Valve
9	Ignition Coil 7
10	Ignition Coil 5
11	Ignition Coil 3
12	Ignition Coil 1
13	Engine Coolant Temperature (ECT) Sensor
14	Throttle Position (TP) Sensor
15	Throttle Body

Fig 2: Evaporative Emission (EVAP) Canister Vent Solenoid Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Left Frame Rail
2	Evaporative Emissions (EVAP) Canister Vent Solenoid
3	Fuel Tank
4	Evaporative Emissions (EVAP) Canister

Fig 3: Right Side of the Engine Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Body
2	Fuel Injector 2
3	Ignition Coil 2
4	Fuel Injector 4
5	Ignition Coil 4
6	C149
7	Fuel Injector 6
8	Ignition Coil 6
9	Ignition Coil 8
10	Fuel Injector 8

Fig 4: Engine Oil Pressure (EOP) Sensor and CMP Sensor Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine Oil Pressure (EOP) Sensor
2	Camshaft Position (CMP) Sensor
3	Camshaft Position (CMP) Sensor Connector

Fig 5: Knock Sensors Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Knock Sensor (KS) 1
2	Knock Sensor (KS) 2

Fig 6: Crankshaft Position (CKP) Sensor Location

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	CKP Mounting Bolt
2	CKP Mounting Location
3	Crankshaft Position (CKP) Sensor

Fig 7: Vehicle Speed Sensor (VSS) - Transfer Case Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case
2	VSS Sensor
3	Transfer Case Encoder Motor

Fig 8: Throttle Actuator Control (TAC) Module Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Throttle Actuator Control (TAC) Module
2	Throttle Actuator Control (TAC) Connector
3	Fuse Block-Underhood

Fig 9: Air Induction Components View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Clamp
2	Air Duct
3	Clamp
4	Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
5	Air Cleaner Assembly
6	Air Restriction Indicator

Fig 10: Accelerator Pedal Position (APP) Sensor Connector Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Accelerator Pedal Position (APP) Sensor Connector
2	Accelerator Pedal Position (APP) Sensor

Fig 11: HO2S Component View - 4.8L and 5.3L

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Bank 1 Sensor 2 HO2S
2	Bank 1 Sensor 1 HO2S
3	Bank 1 Sensor 1 HO2S Threaded Boss
4	Left Bank Catalytic Convertor
5	Bank 1 Sensor 2 HO2S Threaded Boss
6	Bank 2 Sensor 1 HO2S Threaded Boss
7	Right Side Frame Rail
8	Right Bank Catalytic Convertor
9	Bank 2 Sensor 2 HO2S Threaded Boss
10	Bank 2 Sensor 2 HO2S
11	Bank 2 Sensor 1 HO2S

Fig 12: Heated Oxygen Sensors (HO2S) Component View - 6.0L

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Bank 2 Sensor 1 HO2S
2	Bank 1 Sensor 2 HO2S Threaded Boss
3	Right Side Frame Rail
4	Right Bank Catalytic Convertor
5	Bank 2 Sensor 2 HO2S
6	Bank 2 Sensor 2 HO2S Threaded Boss
7	Left Bank Catalytic Convertor
8	Bank 1 Sensor 2 HO2S
9	Bank 1 Sensor 1 HO2S Threaded Boss
10	Bank 1 Sensor 1 HO2S
11	Bank 2 Sensor 1 HO2S Threaded Boss

Fig 13: PCM Location

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Powertrain Control Module (PCM)
2	Radiator Support
3	Left Frame Rail
4	PCM Wire Harness Connectors