To replace it:
1. Locate the Flasher: This is the most challenging part. You'll likely need to consult a repair manual specific to your 1999 Monte Carlo. These manuals show diagrams and describe the process in detail. A Haynes or Chilton manual would be helpful. Searching online for "1999 Chevrolet Monte Carlo turn signal flasher location" might also yield helpful images or forum posts from others who've done this.
2. Access the Flasher: Once located, you'll likely need to remove a panel or trim piece to reach it. This might involve:
* Removing screws: Look for small screws holding the panel in place.
* Unclipping panels: Some panels simply snap into place and can be pried loose gently with a flat plastic tool (to avoid scratching). Be careful not to break anything!
* Disconnecting electrical connectors: Once you've accessed the flasher, you'll need to disconnect any electrical connectors attached to it.
3. Remove the Old Flasher: The flasher is typically a small, easily removable electronic component. It might be plugged in or have a socket. Note how it's connected before removing it.
4. Install the New Flasher: Insert the new flasher, ensuring it's correctly seated and the connector is securely attached.
5. Reassemble Everything: Carefully put back all the panels and trim pieces you removed, ensuring they are correctly secured.
Important Considerations:
* Type of Flasher: Before buying a replacement, identify the type of flasher your Monte Carlo uses. This information should be on the old flasher itself, or in your repair manual. There are different types (electronic vs. thermal), and using the wrong one can lead to problems.
* Electrical Safety: Disconnect your vehicle's negative battery terminal before beginning this work to prevent short circuits or shocks.
* Professional Help: If you are not comfortable working on your vehicle's electrical system, it's best to take it to a qualified mechanic.
Without a repair manual or specific knowledge of your Monte Carlo's interior layout, giving precise instructions is impossible. A repair manual is highly recommended to avoid damage to your car.
