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.
2009 Chevrolet Impala V8-5.3LFACTORY OEM SERVICE PROCEDURE
Accelerator Pedal Position Sensor: Service and Repair
Accelerator Pedal Position Sensor Replacement
Removal Procedure
1. Remove the left instrument panel (I/P) sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side (Service and Repair).
2. Disconnect the accelerator pedal position (APP) sensor electrical connector (1).
3. Remove the APP sensor assembly bolts.
4. Remove the APP sensor assembly from the vehicle.
Installation Procedure
1. Position the APP sensor assembly to the vehicle.
Caution: Refer to Fastener Caution (Fastener Caution).
2. Install the APP sensor assembly bolts.
Tighten the bolts to 5 Nm (44 lb in).
3. Connect APP sensor electrical connector (1)
4. Install the left I/P sound insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side (Service and Repair).
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:
- • 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.