Tools You'll Need:
* New brake light switch (make sure you get the correct one for your vehicle)
* Socket wrench (likely a 11/16" or 7/8" – check your manual)
* Phillips head screwdriver (possibly)
* Ratchet and extension (may be helpful)
* Possibly a small pry tool or flathead screwdriver (for disconnecting electrical connectors)
Procedure:
1. Safety First: Engage the parking brake firmly and chock the wheels. Disconnect the negative battery terminal to prevent electrical shorts.
2. Access the Switch: The brake light switch is located on the brake pedal assembly, usually under the dashboard, near the brake pedal itself. You'll likely need to work under the dash. Getting comfortable and having good lighting is crucial.
3. Disconnect the Electrical Connector: Locate the electrical connector plugged into the brake light switch. Gently but firmly disconnect it. Some connectors have a release tab or clip you need to press to disconnect. Take a picture or note the connector's orientation before disconnecting to ensure correct reassembly.
4. Remove the Switch: Use the appropriate socket wrench to remove the switch from the brake pedal. It's typically held in place by a nut. Sometimes there's a retaining clip as well, so be prepared to carefully work it loose. Be gentle to avoid damaging the brake pedal or surrounding components.
5. Install the New Switch: Carefully align the new brake light switch and thread it onto the brake pedal. Tighten the nut securely to the specifications mentioned in your repair manual. Avoid over-tightening.
6. Reconnect the Electrical Connector: Carefully reconnect the electrical connector, ensuring it's securely seated.
7. Test the Brake Lights: Reconnect the battery's negative terminal. Test the brake lights by gently depressing the brake pedal. Make sure the brake lights illuminate correctly. If they don't work, double-check all connections.
8. Reassemble (if necessary): Put everything back together, ensuring all components are securely fastened.
Important Considerations:
* Access: Getting to the brake light switch in a 1995 Chevy G20 can be tricky. You might need to move parts of the dashboard or steering column out of the way. This is where your repair manual’s diagrams are invaluable.
* Vacuum Booster: Be cautious not to damage the brake booster vacuum hose or other components near the brake pedal.
* Difficulty: If you're not comfortable working under the dashboard or aren't mechanically inclined, it's best to have a qualified mechanic perform the repair. A seemingly simple repair can become complex if you're unfamiliar with automotive systems.
This is a general guide; always defer to your vehicle's specific repair manual for detailed instructions and torque specifications. Improper installation can lead to brake light failure, posing a safety hazard.
