1. Preparation is Key:
* Disconnect the Battery: This is crucial to prevent accidental shorts and shocks. Disconnect the negative (-) terminal first.
* Gather Tools: You'll need sockets (likely a 13mm or 15mm for the starter bolts, and possibly others depending on your specific Blazer's configuration and access), a ratchet, extensions, a wobble socket (highly recommended), and possibly a breaker bar for stubborn bolts. A wire brush can help clean corroded connections. Penetrating oil (like PB Blaster) is your friend.
* Penetrating Oil: Liberally apply penetrating oil to the starter bolts several hours (or even overnight) before attempting removal. This will help break loose any corrosion.
2. Accessing the Starter:
The exact location and access vary slightly depending on the engine (4.3L V6 or 5.7L V8) and transmission (automatic or manual). Consult a repair manual specific to your Blazer's year and engine for diagrams. Generally, the starter is located on the passenger side of the engine, near the bell housing (where the engine connects to the transmission).
3. Removal Techniques:
* Work from different angles: Often, using a combination of extensions and a wobble socket is the key to getting the right angle.
* Break the bolts loose slowly and carefully: Don't force them. If they're really stuck, use a breaker bar for extra leverage, but be mindful not to strip the bolt heads.
* Consider removing other components: Depending on your Blazer, you might need to temporarily remove or loosen other parts like the exhaust manifold heat shields or parts of the intake manifold to gain better access. Again, a repair manual will be invaluable here.
* Support the starter: Once the bolts are loosened, carefully support the starter as you remove it to avoid dropping it into the engine bay.
4. Addressing Corrosion:
* Clean the bolts and mounting points: If the bolts are severely corroded, clean them with a wire brush before attempting removal.
If you're still struggling:
* Repair Manual: A factory service manual is your best friend. It will provide detailed diagrams and instructions specific to your vehicle.
* Professional Help: If you're uncomfortable working on your vehicle, or if you've tried everything and are still unsuccessful, consider taking it to a mechanic.
Important Note: Working under a car can be dangerous. Use jack stands to support the vehicle securely, and never work under a car supported only by a jack. If you're not experienced in auto repair, it's best to seek professional assistance.
