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.

2004 Chevrolet Avalanche 2500FACTORY OEM SERVICE PROCEDURE

Removal Procedure

Fig 1: Position Assurance (CPA) Retainer

GM858196

Courtesy of GENERAL MOTORS CORP.

Remove the connector position assurance (CPA) retainer (1).
Disconnect the instrument panel (I/P) wiring harness electrical connector (2).

Fig 2: View Of TAC Module Electrical Connector

GM871922

Courtesy of GENERAL MOTORS CORP.

Disconnect the engine wiring harness electrical connector (1).

Fig 3: Throttle Actuator Control (TAC) Module Nuts

GM855736

Courtesy of GENERAL MOTORS CORP.

Remove the throttle actuator control (TAC) module nuts.
Remove the TAC module.

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.