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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2009SILVERADO 2500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSACCELERATOR PEDAL POSITION SENSORDESCRIPTION AND OPERATION
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL Turbo
Accelerator Pedal Position Sensor: Description and Operation
2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Description and Operation
Accelerator Pedal Position System Description
The accelerator pedal position (APP) sensor is mounted inside the accelerator pedal control assembly. The sensor is made up of the two individual sensors within a single housing. Each sensor has a unique functionality to determine pedal position.
The accelerator pedal position (APP) system along with the engine control module (ECM) is used to calculate and control the amount of acceleration and deceleration through fuel injector control.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.