General Steps (Expect Variations):
1. Disconnect the Battery: This is crucial to prevent short circuits. Disconnect the negative (-) terminal first.
2. Interior Door Panel Removal:
* Locate and remove the screws: These are usually hidden under armrests, door pulls, or in the lower edge of the panel.
* Carefully pry the panel loose: Use plastic trim tools to avoid scratching the panel. Start at the edges and work your way around, releasing the clips that hold it in place. Be gentle; these clips can break easily. There are often clips located around the door handle itself.
* Disconnect electrical connectors: The power window switch, door lock actuator, and possibly other components are connected to the door panel. Carefully unplug these connectors.
3. Access the Door Handle Mechanism:
* Once the door panel is removed, you'll see the inner workings of the door handle mechanism. This is where things get specific to your truck's model. You might need to remove more screws or clips to access the handle itself.
* Exterior Handle: The exterior handle is usually held in place by several screws or bolts from inside the door. These might be accessible after removing the inner handle mechanism or other components.
* Interior Handle: This is typically connected to the linkage and the lock mechanism. You might need to disconnect the linkage and potentially remove some screws holding the handle in place.
4. Remove the Old Handle: Once you have access, carefully remove the screws or bolts holding the old handle in place. Pay close attention to how the parts are assembled to ensure you can reassemble it correctly. Take pictures as you go if you are unsure.
5. Install the New Handle: Install the new handle, ensuring it's properly aligned and securely fastened with the correct screws or bolts. Reverse the steps used to remove the old handle.
6. Reconnect the linkages and electrical connectors: Make sure everything is connected securely and correctly. Test the door lock and window mechanisms to ensure they work.
7. Reinstall the Door Panel: Carefully align the door panel and snap it back into place, ensuring all the clips are engaged. Replace the screws you removed earlier.
8. Reconnect the Battery: Reconnect the negative (-) terminal, then the positive (+) terminal.
Important Considerations:
* Repair Manual: A repair manual specific to your 1996 GMC Sierra is invaluable. It will provide detailed diagrams and instructions tailored to your specific vehicle.
* Parts: Ensure you purchase the correct replacement door handle for your model.
* Patience: This process can be time-consuming and requires patience. Take your time and be careful not to break any clips or damage any parts.
* Tools: You'll need a set of plastic trim tools, screwdrivers (possibly Phillips and flathead), and possibly a socket set.
If you're not comfortable with this type of repair, it's best to take your truck to a qualified mechanic. Improperly installed door handles can lead to security issues or problems with the door locking mechanism.
