Fixing a car wiper typically involves a few straightforward steps, starting with diagnosing the problem. The most common issues are worn-out rubber blades that cause streaking, a loose wiper arm that needs tightening, or a blown fuse protecting the wiper motor circuit. For streaking, you simply need to replace the wiper blades, a 5-minute job. For a wiper that doesn't move, checking and replacing the fuse is the first thing to try.
Diagnosing the Problem
Before you start, identify the symptom. Is the wiper leaving streaks on the windshield? Is it making a chattering noise? Or is it not moving at all? Streaking and chattering almost always point to worn wiper blades—the rubber part that contacts the glass. If the wipers aren't moving, the issue could be a blown fuse, a faulty motor, or a problem with the linkage.
Replacing Wiper Blades
This is the most common fix. You can buy replacement blades at any auto parts store; you just need to know your car's make, model, and year. Most modern cars use a J-hook connector that makes installation tool-free.
- Lift the wiper arm away from the windshield.
- Press the small tab on the underside of the old blade's connector.
- Slide the old blade off the J-hook.
- Slide the new blade onto the J-hook until you hear a click.
Addressing a Non-Moving Wiper
If the wiper is dead, first check the fuse box. Consult your owner's manual to find the specific fuse for the wipers. Pull it out and see if the thin metal strip inside is broken. If so, replace it with a new fuse of the same amperage. If the fuse is fine, the problem could be more serious, like the wiper motor, and may require a professional mechanic.
| Common Wiper Issue | Likely Cause | DIY Fix Difficulty | Estimated Part Cost |
|---|
| Streaking/Smearing | Worn Rubber Blades | Easy (5 minutes) | $15 - $30 per blade |
| Chattering/Jumping | Worn Blades or Bent Arm | Easy to Moderate | $15 - $30 / Arm: $50+ |
| Not Moving | Blown Fuse | Easy (5 minutes) | $5 - $10 for a fuse pack |
| Not Parking Correctly | Faulty Motor or Linkage | Advanced (Mechanic) | $200 - $600+ |
When to See a Mechanic
If you've replaced the blades and fuse and the wipers still don't work, the issue is likely electrical (the motor) or mechanical (the linkage connecting the arms). These repairs are complex and best left to a professional.
