Methods (in order of increasing difficulty):
1. Check the inside release: Some Ford Rangers have an interior release lever or button located near the tailgate. Check for this. It might be hidden behind the side paneling or under the carpet.
2. Reach through the gap: If you can't find an interior release, carefully try to reach your hand through the gap between the tailgate and the cab. Feel for the latch mechanism and see if you can manually manipulate it. This is tricky and requires a bit of dexterity. Use a thin, flat object (like a long screwdriver or coat hanger) to help you probe and push/pull the latch parts. Be careful not to scratch the paint.
3. Remove the inner tailgate panel: This requires some disassembly. You'll need to remove the interior paneling of the tailgate to get direct access to the latch mechanism. This involves removing screws and potentially some plastic clips. Once removed, you should have clear access to the broken latch and might be able to disengage it manually. You'll need a trim panel removal tool to avoid scratching the plastic. Search online for "1999 Ford Ranger tailgate panel removal" for a visual guide.
4. Drill the lock: This is a last resort and will damage the tailgate. If all else fails, you might carefully drill out the lock cylinder to release the latch. This requires precision and the risk of further damage, so only attempt this if you're comfortable with it and have no other options. You'll likely need a new lock mechanism afterwards.
Important Considerations:
* Safety: Be cautious when working around the tailgate. Don't put your fingers where they could get pinched.
* Tools: Have the right tools before you start. You'll likely need screwdrivers (Phillips and flathead), possibly a trim panel removal tool, and potentially a drill (as a last resort).
* Repair vs. Replacement: Once you've accessed the latch, assess the damage. You might be able to repair it, or you might need to replace the entire latch mechanism.
* Online resources: Search online for "1999 Ford Ranger tailgate repair" or "1999 Ford Ranger tailgate latch replacement" for detailed instructions and diagrams. YouTube videos can also be incredibly helpful.
If you're not comfortable with any of these methods, take your truck to a mechanic or body shop. They have the tools and expertise to open the tailgate safely and efficiently, and can assess the damage to determine the best course of action for repair or replacement.