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
Conditions for Running
Passive Test
- The Engine Coolant Temperature (ECT) is between 39-221°F (4-105°C).
- The Intake Air Temperature (IAT) is between 39-158°F (4-70°C).
- The battery voltage is more than 10 volts.
- The Active Test, if required, begins after the engine goes into Closed Loop Fuel Control.
Active Test
- The Engine Coolant Temperature (ECT) is between 176-221°F (80-105°C).
- The Intake Air Temperature (IAT) is more than 50°F (10°C).
- The engine is operating in Closed Loop Fuel Control.
- The battery voltage is more than 10 volts.
Factory Service Tools
Use the Manual With the Right Hardware
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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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