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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1410 (ENGINE CONTROL SYSTEM - 4.2L (INTRODUCTION))COMPONENT LOCATORENGINE CONTROLS COMPONENT VIEWS
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Engine Controls Component Views

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Engine Controls Component Views
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Controls Component Views
GM747443Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Throttle Actuator Control (TAC), Throttle Body
2 Intake Air Temperature (IAT) Sensor
3 Manifold Absolute Pressure (MAP) Sensor
Fig 2: Engine Controls Component Views - With Air Duct Removed
GM747446Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Ignition Coil #1
2 Ignition Coil #2
3 Ignition Coil #3
4 Ignition Coil #4
5 Ignition Coil #5
6 Ignition Coil #6
7 C104
Fig 3: Engine Controls Component Views, Left Front
GM747447Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Coolant Temperature (ECT) Sensor
2 Engine Harness
3 PCM C1
4 PCM C2
5 Powertrain Control Module (PCM) C3
Fig 4: Engine Controls Component Views, Left Side
GM747448Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Crankshaft Position (CKP) Sensor
2 Knock Sensor (KS) 2
3 Knock Sensor (KS) 1
4 Evaporative Emission (EVAP) Canister Purge Solenoid
Fig 5: Engine Controls Component Views, Left Side
GM797470Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Engine Coolant Temperature (ECT) Sensor Connector
Fig 6: Engine Controls Component Views, Right Front
GM747451Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Camshaft Position (CMP) Sensor
2 Camshaft Actuator Solenoid Assembly
Fig 7: Engine Controls Component Views, Right Side
GM747452Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) 1
Fig 8: Exhaust Pipe
GM747453Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Heated Oxygen Sensor (HO2S) 2
Fig 9: Automatic Transmission Component Views
GM747454Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Automatic Transmittion
2 Vehicle Speed Sensor (VSS)
Fig 10: Accelerator Pedal Position Sensor (APP)
GM747456Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Accelerator Pedal Position (APP) Sensor
Fig 11: Fuel Tank Component Views
GM747457Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Fuel Pump and Sender Assembly
2 Fuel Tank
3 Evaporative Emission (EVAP) Canister Vent Solenoid
4 Fuel Tank Pressure (FTP) Sensor
RENDER: 1.0x

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