1. Check the Wiper Blade Attachment:
* Inspect the Connector: Carefully examine the wiper blade's connection point to the wiper arm. Look for:
* A broken or loose hook: The blade usually clips onto a hook on the arm. It might be broken, bent, or simply not properly seated.
* A damaged adapter: Some blades use adapters. The adapter might be cracked or improperly installed.
* Excessive wear: The hook on the arm or the receiving slot on the blade might be worn down from age.
* Try Re-attaching: If the connection seems loose or misaligned, try gently but firmly reattaching the wiper blade to the arm. Make sure it clicks securely into place.
* Replace the Wiper Blade: If the blade itself is old, worn, or the connector is damaged, replace it with a new one specifically designed for your 2001 Chevy Blazer. Make sure you get the right size.
2. Check the Wiper Arm Movement:
* Lubricate the Pivot Point: The wiper arm pivots on a shaft. Over time, this can become stiff or rusty, hindering its movement. Apply a small amount of silicone-based lubricant (NOT WD-40; it's a solvent and will evaporate) to the pivot point. Don't over-lubricate.
* Check for Obstructions: Make sure nothing is preventing the wiper arm from moving freely. This might involve removing debris or ice build-up around the pivot point.
3. Inspect the Wiper Motor and Linkage:
* Test the Motor: With the ignition on, turn on your wipers. If they don't move at all, the problem is likely with the motor itself, the wiper motor fuse, or the wiper motor relay. You'll need to troubleshoot those components separately. A multimeter can help here.
* Inspect the Linkage: If the motor runs but only one wiper arm moves, there might be a problem with the linkage connecting the motor to the arms. This requires more disassembly to inspect.
4. If all else fails:
* Professional Help: If you've tried all the above and the problem persists, it's best to take your vehicle to a qualified mechanic. There could be a more serious issue with the wiper motor, linkage, or even electrical components.
Important Notes:
* Safety First: Always disconnect the negative battery terminal before working on any electrical components of your vehicle.
* Tools: You may need a screwdriver (possibly a specialized wiper arm removal tool) to remove the wiper arm for closer inspection, depending on your vehicle's design. Be gentle to avoid damaging the arm or paint.
* Reference Materials: A repair manual specific to your 2001 Chevy Blazer can be invaluable. It will provide diagrams and detailed instructions.
Remember to replace both wiper blades at the same time for even wiping performance. Addressing the connection issue between the blade and the arm is the most likely solution, but thoroughly checking each step will help isolate the exact cause.
