2007 GMC Acadia FWD V6-3.6LFACTORY OEM SERVICE PROCEDURE

Accelerator Pedal Position Sensor: Service and Repair



ACCELERATOR PEDAL POSITION SENSOR REPLACEMENT

REMOVAL PROCEDURE

Factory service manual diagram



1. Remove the left instrument panel insulator.
2. Remove the knee bolster.
3. Remove the instrument panel wiring harness electrical connector (2) from the accelerator pedal position (APP) sensor assembly.

4. IMPORTANT: Due to clearance issues, the upper attachment bolt cannot be removed from the APP sensor assembly. Loosen the bolt completely and leave the bolt in the component until the assembly is removed from the vehicle.

Factory service manual diagram



Remove the APP sensor bolts and sensor assembly from the vehicle.

INSTALLATION PROCEDURE

Factory service manual diagram



1. Install the upper bolt into the APP sensor assembly.
2. Install the APP sensor assembly into the vehicle.

3. NOTE: Refer to Fastener Notice.

Install the remaining 2 lower APP sensor assembly bolts.

Tighten the bolts to 8 N.m (71 lb in).

Factory service manual diagram



4. Install the instrument panel wiring harness electrical connector (2) to the APP sensor assembly.
5. Install the knee bolster.
6. Install the left instrument panel insulator.
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.