This procedure assumes a conventional automatic transmission. If you have a different type of transmission (e.g., manual, CVT), the process will be significantly different.
Tools and Materials You'll Need:
* New Transmission Fluid: Consult your owner's manual for the correct type and amount. Don't use a universal fluid; use the specified fluid for your transmission.
* Transmission Fluid Drain Pan: Large enough to hold several quarts of fluid.
* Wrench (Socket and Ratchet): To remove the drain plug and fill plug (size will vary; consult your manual).
* Funnel: To add new fluid.
* Torque Wrench (highly recommended): To tighten the drain and fill plugs to the correct specifications (avoid stripping the threads). Your owner's manual should specify the torque values.
* Jack and Jack Stands: To safely lift and support the vehicle.
* Wheel Chocks: For added safety.
* Gloves: To protect your hands.
* Rags or Shop Towels: To clean up spills.
* Measuring Device (optional): A measuring cup to track how much fluid is drained and added.
Procedure:
1. Safety First: Park the vehicle on a level surface, engage the parking brake firmly, and use wheel chocks. Always wear safety glasses.
2. Warm Up the Transmission: Run the engine for 10-15 minutes to warm the transmission fluid. This allows it to flow more easily.
3. Locate the Drain and Fill Plugs: Consult your owner's manual for the exact location of the transmission drain and fill plugs. They are typically located on the bottom and side of the transmission pan, respectively.
4. Drain the Fluid: Position the drain pan under the drain plug. Carefully loosen and remove the drain plug, letting the fluid drain completely. Be prepared for hot fluid! Let it drain for at least 30 minutes to ensure most of the old fluid is out.
5. Remove and Clean the Transmission Pan (Optional but Recommended): This is more involved, requiring additional tools (sockets, possibly a pry bar). Removing the pan allows you to inspect the filter (replace it if necessary) and clean out any debris that has accumulated in the pan. Refer to a repair manual for specific instructions as this step varies significantly between vehicles.
6. Replace the Drain Plug: Once the fluid has drained, carefully replace the drain plug and tighten it to the correct torque specification using your torque wrench.
7. Add New Transmission Fluid: Locate the transmission fill plug. Using a funnel, slowly add the correct amount of new transmission fluid. Consult your owner's manual for the correct capacity. You may not be able to add all of the required fluid through the fill plug; you might need to remove the transmission pan to properly refill.
8. Check the Fluid Level: Start the engine and let it run for a few minutes. Check the transmission fluid level using the dipstick (if your model has one) or by consulting your owner's manual for the appropriate method. Add more fluid as needed until it reaches the correct level. Again, this is model-specific.
9. Replace the Fill Plug: Tighten the fill plug to the correct torque specification.
10. Clean Up: Dispose of the old transmission fluid properly (check local regulations). Clean up any spills.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 2000 Pontiac Grand Am is highly recommended. It will provide detailed diagrams and instructions, including torque specifications and fluid type.
* Transmission Filter: Replacing the transmission filter is generally recommended when changing the fluid, especially if you are removing the pan.
* Fluid Type: Using the incorrect transmission fluid can severely damage your transmission. Use the fluid specified in your owner's manual.
This information is for general guidance only. Always refer to your owner's manual and a repair manual for your specific vehicle before attempting any repair. If you are unsure about any part of this process, seek professional help. Improperly performing this procedure could result in significant damage to your transmission.
