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.

2005 Pontiac Aztek Base, AWDFACTORY OEM SERVICE PROCEDURE

Removal Procedure

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (LA1) in Engine Electrical.
Remove the coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
Remove the left front sheet metal diagonal brace. Refer to Brace Replacement - Front Fender Upper Diagonal - Left orBrace Replacement - Front Fender Upper Diagonal - Right in Body Front End.
Remove the air cleaner side cover and the air cleaner element. Refer to Air Cleaner Element Replacement .

Fig 1: View Of Air Cleaner Upper Cover

Courtesy of GENERAL MOTORS CORP.

Remove the air cleaner upper cover bolts and the air cleaner upper cover.
Remove and reposition the powertrain control module (PCM) with the wiring harness.

Fig 2: Locating Air Cleaner Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the air cleaner bolts and the air cleaner.

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.

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