What causes windshield wiper blade to operate slowly
What causes windshield wiper blade to operate slowly
There are several reasons why windshield wiper blades may operate slowly.
Here are the main factors:
Electrical issues
- Faulty motor: The wiper motor may be worn out, have internal wiring problems, or a damaged commutator, which can lead to reduced power output and slow operation.
- Loose or corroded connections: Loose wires or corroded terminals in the wiper motor circuit can disrupt the electrical supply, causing the wipers to move slowly.
- Failing relay: A malfunctioning wiper relay may not be able to supply the correct amount of current to the motor, resulting in sluggish wiper movement.
Mechanical problems
- Worn-out linkage or joints: The linkage system that connects the wiper motor to the wiper blades can wear out over time. Loose or damaged joints can cause resistance and make the wipers move slowly.
- Sticky or frozen wiper arms: If the wiper arms are stuck due to dirt, rust, or cold weather, they may not move freely and will operate slowly.
- Excessive friction: Buildup of dirt, debris, or dried rubber on the wiper blades can increase friction against the windshield, making it harder for the wipers to move.
Fluid and environmental factors
- Low washer fluid level: If the washer fluid level is too low, the wipers may not have enough lubrication to move smoothly, especially in dry or cold conditions.
- Extreme weather conditions: In very cold weather, the wiper blades can freeze to the windshield, or the motor's performance may be affected by the cold. In hot weather, the rubber blades may soften and stick to the windshield, causing slow operation.
Blade issues
- Worn-out blades: Over time, wiper blades can become worn, cracked, or deformed. This can reduce their effectiveness and cause them to move more slowly as they struggle to clear the windshield.
- Incorrect blade size or type: Using wiper blades that are too large or too small for the windshield, or using the wrong type of blades, can lead to poor performance and slow operation.
