Tools You'll Need:
* New brake stop light switch (make sure you get the correct one for your vehicle)
* Socket wrench (likely a 11/16" or possibly a 7/16" socket; check your truck to be sure)
* Possibly a Phillips head screwdriver (depending on the access)
* Rags or shop towels
Procedure:
1. Safety First: Engage the parking brake firmly. Disconnect the negative (-) terminal of your battery. This prevents accidental shorts and electrical shocks.
2. Locate the Switch: The brake stop light switch is usually located on the brake pedal assembly, under the dash, near where the brake pedal connects to the master cylinder. You'll need to look up underneath the dash, near the firewall.
3. Disconnect the Electrical Connector: Carefully disconnect the electrical connector from the brake stop light switch. It's usually a simple plug-in connector that can be unplugged by hand. Take a picture or note its position if you're concerned about reconnecting it correctly.
4. Remove the Switch: Use the appropriate socket wrench to remove the switch from the brake pedal. It might be held in place by a nut or a bolt. Sometimes a slight twist or pry is needed – be careful not to damage the surrounding parts.
5. Install the New Switch: Carefully align the new brake stop light switch and install it in the same position as the old one. Tighten the nut or bolt securely.
6. Reconnect the Electrical Connector: Reconnect the electrical connector to the new switch.
7. Reconnect the Battery: Reconnect the negative (-) terminal of your battery.
8. Test the Brakes: Turn on the ignition (but don't start the engine) and gently press the brake pedal. Your brake lights should illuminate. If they don't, double-check your connections and the installation. Test the brake lights while someone else observes them from the rear of the truck.
Important Considerations:
* Variations: The exact location and method of attachment might vary slightly depending on your specific 1997 Chevrolet 1500 model. A quick online search for your specific year, make, and model (including engine size and trim level) might yield diagrams or videos showing the exact location and process. A repair manual specific to your vehicle is an even better resource.
* Bleeding the Brakes (unlikely): Unless you've significantly disturbed the brake system, you shouldn't need to bleed the brakes after replacing the stop light switch.
If you're uncomfortable working on your vehicle yourself, it's always best to take it to a qualified mechanic. This is a relatively simple repair, but improper installation could lead to brake system issues.
