Here's a general outline. Specific steps might vary slightly depending on your truck's trim and options:
1. Preparation:
* Gather Tools: You'll need a screwdriver set (Phillips and flathead), possibly a socket wrench set (metric), pliers, a wiring diagram (highly recommended – a Haynes or Chilton manual is a great investment), electrical tape, and possibly a small pry tool.
* Disconnect the Battery: This is crucial to prevent electrical shock and short circuits.
* Consult a Repair Manual: A repair manual specific to your year and model truck will provide detailed diagrams and instructions that are far more accurate than general advice.
2. Accessing the Ignition Switch:
* Steering Column Removal (Likely Necessary): This is the most challenging part. You'll likely need to remove the steering column shroud (plastic cover around the steering column). This often involves removing screws and potentially some trim pieces. The method for this varies depending on your truck. The repair manual will be essential here.
* Accessing the Switch: Once the shroud is removed, you should be able to see the ignition switch. It's usually held in place by screws or a retaining clip. You might need to carefully maneuver the steering column slightly to get better access. Again, your repair manual will show the exact location and how it's secured.
3. Removing the Old Ignition Switch:
* Disconnect Wiring Harness: Carefully unplug the wiring harness from the ignition switch. Take pictures or make detailed notes of how each wire is connected to avoid confusion during reassembly.
* Remove the Switch: Once the harness is disconnected, remove the screws or clips that hold the ignition switch in place. Remove the switch carefully.
4. Installing the New Ignition Switch:
* Installation is the Reverse of Removal: Align the new ignition switch, making sure it's seated correctly.
* Reconnect the Wiring Harness: Carefully reconnect the wiring harness, ensuring each wire is in its correct position. Refer to your notes or pictures.
* Secure the Switch: Tighten any screws or clips that secure the ignition switch.
* Reinstall the Steering Column Shroud: Put everything back together in reverse order of removal.
5. Testing:
* Reconnect the Battery: Reconnect the negative battery cable.
* Test the Ignition: Turn the key to make sure all positions (accessory, start, run, off) work correctly. Check your lights, radio, etc. to make sure everything is functioning properly.
Important Considerations:
* The Stickiness: If the switch is sticking, the problem might not be the switch itself but rather a problem with the ignition cylinder (the part the key goes into), the steering column mechanism, or even the wiring harness. Make sure to diagnose this properly before replacing the switch.
* Ignition Cylinder: If the ignition cylinder is also sticking, replacing only the switch is unlikely to fix the problem.
* Professional Help: If you're not comfortable working on your vehicle's electrical system, it's best to take it to a qualified mechanic. Improper wiring can lead to serious damage.
* Key Programming: In some cases (less likely on a 1996), the ignition switch might be tied into the vehicle's security system, and replacing it may require reprogramming the keys.
Remember, this is a general overview. A repair manual specific to your 1996 Chevy 1500 is essential for accurate and safe completion of this repair. Improper installation can lead to electrical problems and even vehicle damage. If you're unsure about any step, consult a professional mechanic.
