2004 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE

Engine Controls Component Views

Fig 1: Full Engine View Left Side Component Views
GM774476Courtesy 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
GM334914Courtesy 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
GM1409545Courtesy 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
GM774474Courtesy 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
GM198593Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Knock Sensor (KS) 1
2 Knock Sensor (KS) 2
Fig 6: Crankshaft Position (CKP) Sensor Location
GM222858Courtesy 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
GM1409609Courtesy 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
GM750162Courtesy 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
GM350034Courtesy 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
GM751380Courtesy 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
GM334918Courtesy 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
GM349194Courtesy 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
GM310796Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Powertrain Control Module (PCM)
2 Radiator Support
3 Left Frame Rail
4 PCM Wire Harness Connectors
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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