Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Chevrolet Impala V6-3.5LFACTORY OEM SERVICE PROCEDURE
Powertrain Management: Locations
Engine Controls Component Views
LF of the Engine Compartment
LF of the Engine Compartment:
1 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
2 - Brake Booster Vacuum Sensor (LS4)
3 - Windshield Wiper Motor
4 - Electronic Brake Control Module (EBCM)
5 - A/C Refrigerant Pressure Sensor
6 - Transmission Control Module (TCM)
7 - Engine Control Module (ECM)
8 - G101
9 - Inflatable Restraint Front End Sensor - Left
Near the Air Cleaner Duct (LZE, LZ4, LZ9)
1 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
2 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
3 - Air Cleaner Housing
Front of the Engine (LZE, LZ4, LZ9)
1 - Camshaft Position (CMP) Sensor
2 - Knock Sensor (KS) Bank 2
3 - Engine Oil Pressure (EOP) Sensor
4 - Camshaft Position Actuator Solenoid
Top of the Engine (LZE, LZ4, LZ9)
1 - Manifold Absolute Pressure (MAP) Sensor
2 - Throttle Body
3 - Intake Manifold
4 - Intake Manifold Tuning (IMT) Valve Solenoid (LZ9)
5 - Camshaft Position (CMP) Sensor
6 - Heated Oxygen Sensor (HO2S) 1
7 - Ignition Control Module (ICM)
Beneath the Upper Intake (LZE, LZ4, LZ9)
1 - Fuel Injector 5
2 - Engine Coolant Temperature (ECT) Sensor
3 - Fuel Injector 6
4 - Fuel Injector 4
5 - Fuel Injector 2
6 - Fuel Injector 1
7 - Fuel Injector 3
Rear of the Engine (LZE, LZ4, LZ9)
1 - Throttle Body
2 - Ignition Control Module (ICM)
3 - Heated Oxygen Sensor (HO2S) 1
4 - Engine Coolant Heater
5 - Engine Oil Level Switch
6 - Crankshaft Position (CKP) Sensor
7 - Knock Sensor (KS) Bank 1
Underbody
1 - Heated Oxygen Sensor (HO2S) 2
Pedal Assemblies
1 - Park Brake Switch
2 - Dash Panel
3 - Brake Pedal Position Sensor
4 - Accelerator Pedal Position (APP) Sensor
Fuel Tank Components
1 - Fuel Tank
2 - Fuel Pump and Sender Assembly
3 - Fuel Tank Pressure (FTP) Sensor
4 - Evaporative Emission (EVAP) Canister Vent Solenoid
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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