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.

2002 Chevrolet C3500 HD 6.5 F, AutomaticFACTORY OEM SERVICE PROCEDURE

Removal Procedure

CAUTION: Refer to BATTERY DISCONNECT CAUTION .

Remove the negative battery cables.
Remove the electrical connector.

Fig 1: APP Sensor Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Remove the mounting bolts.

Fig 2: APP Module Mounting Bolts
Courtesy of GENERAL MOTORS CORP.
Remove the APP module.

Fig 3: APP Module
Courtesy of GENERAL MOTORS CORP.

Chapter Navigation

Return to Chapter: Accelerator Pedal Position (APP) Sensor Replacement

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.