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 Pontiac Aztek FWDFACTORY OEM SERVICE PROCEDURE

Installation Procedure

Install the muffler over the rear axle and towards the rear of the vehicle.
Install the exhaust hanger insulators to the muffler.
If the vehicle is equipped with AWD, use the utility stand to raise and install the crossmember. Refer to CROSSMEMBER .

Fig 1: Installing Muffler
Courtesy of GENERAL MOTORS CORP.
Install a new catalytic converter gasket.
NOTE: Refer to FASTENER NOTICE .
Install the catalytic converter bolts.
Tighten

Tighten the bolts to 34 N.m (25 lb ft).
Lower the vehicle.

Fig 2: Installing Catalytic Converter Gasket & Bolts
Courtesy of GENERAL MOTORS CORP.

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.