If your Buick Century wipers are malfunctioning, the problem is likely one of these:
* Wiper switch: The switch itself might be faulty. Try different speeds to see if any work. Replacement is often the solution.
* Wiper motor: The motor itself could be failing. This is often indicated by slow speeds, intermittent operation, or no operation at all. A replacement motor is necessary.
* Wiring and connectors: Corrosion, broken wires, or loose connections in the wiring harness leading to the motor can cause intermittent or complete failure. Inspect carefully.
* Fuse: Check the fuse associated with the wipers in your fuse box.
* Wiper linkage (if applicable): On some older vehicles, a mechanical linkage connects the motor to the wiper arms. This can become worn or broken, causing inconsistent wiping.
* Control Module (PCM/BCM): In newer models, a computer module may control the wiper motor. A faulty module would require professional diagnosis and likely replacement.
Troubleshooting Steps:
1. Check the fuse: This is the easiest first step.
2. Inspect the wiring: Look for any obvious damage to wires or connectors near the motor and switch.
3. Test the wiper switch: Try all speeds and the intermittent setting. If only one speed works, the switch is suspect.
4. Listen for the motor: When you turn on the wipers, do you hear the motor running? If not, it could be the motor itself, the fuse, or the wiring.
If you've checked these and the wipers still don't work correctly, you'll likely need to take your Buick Century to a mechanic for diagnosis and repair. They have the tools and experience to pinpoint the exact problem. Trying to repair the wiper motor itself is usually not recommended unless you have significant automotive experience.
