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

Installation Procedure

Fig 1: View Of Air Cleaner Housing Cover, Screws & Air Filter Element

GM858229

Courtesy of GENERAL MOTORS CORP.

Install the air filter element.
Install the air cleaner housing cover.
Tighten the air cleaner housing cover screws until snug.

Fig 2: View Of MAF/IAT Sensor Electrical Connectors

GM750582

Courtesy of GENERAL MOTORS CORP.

Connect the MAF/IAT sensor electrical connector (3).
Install the intake air resonator. Refer to Intake Air Resonator 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.