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 AWDFACTORY OEM SERVICE PROCEDURE

Engine Block Disassemble

Remove the camshaft rear bearing hole plug.

Fig 1: Removing Camshaft Rear Bearing Hole Plug
Courtesy of GENERAL MOTORS CORP.
Remove the rear oil gallery plugs (1, 2, 3).

Fig 2: Removing Rear Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.
Remove the front oil gallery plugs (1, 2).

Fig 3: Removing Front Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.
Remove all of the remaining engine block plugs.
Remove the knock sensor.

Fig 4: Removing Knock Sensor
Courtesy of GENERAL MOTORS CORP.
Remove the engine oil pressure switch.

Fig 5: Removing Engine Oil Pressure Switch
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.