1. Diagnosis and Preparation:
* Identify the Jam: Try to pinpoint *where* the tailgate is binding. Is it the latch mechanism itself, the hinges, or something else? Carefully inspect the area around the latch and hinges for any obvious obstructions.
* Gather Tools: You'll likely need:
* Penetrating oil (PB Blaster, WD-40): To loosen any rusted or seized parts.
* Hammer: Possibly to gently tap things loose. Use a rubber mallet if possible to avoid damage.
* Screwdrivers (Phillips and Flathead): To remove screws or potentially pry things loose (use caution!).
* Wrench(es): Depending on the specific mechanism, you might need wrenches to loosen bolts.
* Safety Glasses and Gloves: Protect yourself from injury.
* Remove Interior Panel (if necessary): Access to the tailgate latch mechanism from the inside of the Blazer might help. This usually involves removing screws and potentially some plastic clips.
2. Attempts to Free the Tailgate:
* Penetrating Oil: Generously apply penetrating oil to all moving parts of the latch mechanism and hinges. Let it sit for at least 30 minutes, or even overnight, to work its magic. Reapply as needed.
* Manual Manipulation: Carefully try to work the latch mechanism. Gently rock and jiggle the tailgate, applying pressure in different directions. Listen for any sounds that might indicate where the binding is occurring.
* Check the Cables: If you can access the latch mechanism from the inside, inspect the cables that connect to the lock and release. Are they frayed, broken, or tangled?
* Remove the Interior Latch Mechanism: This might involve removing screws and possibly some plastic pieces. Once you have access to the inner workings, you might be able to manipulate the components to release the tailgate.
* Address Hinges: If the hinges are the problem, try penetrating oil on them. If they're severely rusted or damaged, you might need to carefully remove them (this often involves removing bolts, and can be challenging).
3. If All Else Fails – Destructive Removal (Last Resort):
If you can't free the tailgate through the above methods, you might have to resort to more drastic measures. This should be your absolute last resort because it will likely damage parts:
* Cutting the Latch Mechanism: In some cases, you might need to carefully cut the latch mechanism with a bolt cutter or reciprocating saw (Sawzall). This is risky and requires precision to avoid damaging the tailgate itself.
* Removing the hinges: As mentioned before, this can be difficult but may be necessary if the hinges are the primary point of failure. You might need to use a grinder to remove the heads of the bolts if they are seized.
Important Considerations:
* Take Pictures: Before you start, take pictures of the tailgate latch mechanism and hinges. This will help you during reassembly.
* Patience: This is a potentially time-consuming process. Don't rush it.
* Professional Help: If you're uncomfortable working on your vehicle or if you've tried everything and still can't remove the tailgate, it's best to seek help from a qualified mechanic.
Remember safety first! Be careful when using tools, and always wear appropriate safety gear. Good luck!
