Steps (General Outline - Consult your repair manual for specifics):
1. Disconnect the Battery: This is crucial to prevent accidental short circuits. Disconnect the negative (-) terminal first.
2. Remove the Wiper Arms: You'll need a wiper arm puller tool. These are inexpensive and readily available at auto parts stores. This prevents damaging the wiper arms or the spindle. Before removing the arms, mark their position on the shaft so you can reinstall them correctly.
3. Access the Motor: This is often the most challenging part. You likely need to remove parts of the cowl (the plastic panel under the windshield). The specific steps vary depending on the Aztek's trim level and any modifications. Expect to possibly remove:
* Cowling: This might involve removing screws, clips, and possibly even some weather stripping.
* Wiper Linkage: You might need to disconnect the wiper linkage from the motor to gain better access.
* Other Components: There might be other parts (like air ducts or hoses) obstructing access to the motor. Be very careful when removing or moving these to avoid damage.
4. Disconnect Electrical Connectors: Once you've gained sufficient access, disconnect the electrical connector(s) from the wiper motor. Take photos if necessary to remember how they're connected for reassembly.
5. Remove Mounting Bolts/Nuts: The wiper motor is typically secured by bolts or nuts. Remove these, carefully noting their location and any washers or spacers.
6. Remove the Motor: Carefully remove the motor from its mounting location.
7. Reassembly: Reassembly is the reverse of the removal process. Ensure all electrical connectors are securely connected, the wiper linkage is correctly aligned, and all bolts/nuts are tightened securely. Replace the cowl panel and wiper arms.
Important Considerations:
* Repair Manual: A repair manual specific to your 2002 Pontiac Aztek is highly recommended. It will have detailed diagrams and steps specific to your vehicle.
* Tools: Gather the necessary tools beforehand, including screwdrivers (Phillips and flathead), sockets, a wiper arm puller, and possibly pliers.
* Patience: This is not a quick job. Take your time and be methodical.
* Photos: Take photos throughout the process, especially during disassembly, to aid in reassembly.
* Professional Help: If you're not comfortable working on your car, consider taking it to a professional mechanic.
This is a general guide. The specific steps might differ slightly for your Aztek. Always prioritize safety and consult your repair manual for the most accurate and safe procedure.